FM336Plus V.34/Group 3 High Performance Fax Modem Family The Conexanta FM336Plus High Performance Fax Modem family offers ITU-T V.34 halfduplex mode operation that supports synchronous Group 3 facsimile send and receive speeds up to 33600 bits per second (bps). The FM336Plus-D and FM336Plus-D90 support ITU-T V.34 duplex data and synchronous/asynchronous modes with rates up to 33600 bps. The FM336Plus-D90 also supports ITU-T V.90 PCM mode, which can receive data at speeds up to 56 kbps. The device has low voltage operation and is housed in a 100-pin Plastic Quad Flat Package (PQFP). The modem's small size and low power consumption allow the design of compact system enclosures for use in industrial, office, and home environments. Table 1 lists the FM336Plus Modem Family models and features. Utilizing V.34 and V.90 techniques to optimize modem configuration for line conditions, the modem connects at the optimal selected data rate that the channel can support from 2400 bps up to 56 kbps. The modem can operate over the Public Switched Telephone Network (PSTN) through a line terminator provided by a Data Access Arrangement (DAA). The FM336Plus is backward pin compatible with the previous Conexant FM336 fax modem, and supports all features of the FM336 family. The FM336Plus also has numerous feature and performance enhancements. For more information on the enhancements, refer to the FM336Plus High Performance Fax Modem Designer's Guide (Doc No. 101360A). Table 1. FM336Plus Modem Family Models and Features Modem Model Part Number V.34 Duplex V.90 Fax Mode Data Mode PCM Mode Clock/Crystal Input Clock Oscillator Crystal FM336Plus CX06832-11 Yes No No Yes No FM336Plus CX06832-12 Yes No No No Yes FM336Plus-D CX06832-13 Yes Yes No Yes No FM336Plus-D CX06832-14 Yes Yes No No Yes FM336Plus-D90 CX06832-15 Yes Yes Yes Yes No FM336Plus-D90 CX06832-16 Yes Yes Yes No Yes Data Sheet Conexant Features (Entire FM336Plus Family) * 2-wire half-duplex fax modem modes with send and receive data rates up to 33600 bps - V.34 half-duplex, V.17, V.33, V.29, V.27 ter, and V.21 channel 2 - Short train option in V.17 and V.27 ter * 2-wire duplex data modem modes - V.21, V.23 (75 bps TX/1200 bps RX or 1200 bps TX/75 bps RX) * PSTN session starting - V.8 and V.8bis signaling * HDLC support at all speeds - Flag generation, 0-bit stuffing, ITU-T CRC-16 or CRC-32 calculation and generation - Flag detection, 0-bit deletion, ITU-T CRC-16 or CRC-32 check sum error detection - FSK flag pattern detection during highspeed receiving * Tone modes and features - Programmable single or dual tone generation - DTMF receiver - Tone detection with three programmable tone detectors * Serial synchronous data * Parallel synchronous data * Automatic Rate Adaptation (ARA) in V.34 half-duplex * Auto-dial and auto-answer control * TTL and CMOS compatible DTE interface - ITU-T V.24 (EIA/TIA-232-E) (data/control) - Microprocessor bus (data/configuration/control) * Receive dynamic range: - 0 dBm to -43 dBm for V.17, V.33, V.29, V.27 ter and V.21 - -9 to -43 dBm for V.34 half-duplex * Caller ID Demodulation * Single tone detection in Data Mode * ADPCM Voice Mode (Conexant Proprietary) Doc. No. 101361C October 2, 2001 FM336Plus V.34/Group 3 High Performance Fax Modem Family Features (Entire FM336Plus Family-Continued) * * * * * * * * * * * * Distinguishing Features (-D / -D90) Programmable RLSD turn-on and turn-off thresholds Programmable transmit level: 0 to -15 dBm Adjustable speaker output to monitor received signal DMA support for interrupt lines Two 16-byte FIFO data buffers for burst data transfer with extension up to 255 bytes Diagnostic capability V.21 Channel 1 Flag detect V.21 Channel 2 Flag detect +3.3 V operation with +5 V tolerant inputs +5 V analog signal interface 100-pin PQFP package Typical power consumption - Normal mode: VDD1 = 250 mW (+3.3V for DSP); VDD = 35 mW (+5 V for IA) - Sleep mode: VDD1 = 20 mW (+3.3V for DSP); VDD = 0.1 mW (+5 V for IA) * 2-wire duplex data modem modes with send and receive rates up to 33600 bps - V.34 duplex (33.6 kbps), V.32 bis, V.32, V.22 bis, and V.22 - Bell 208, 212A, and 103 * Serial asynchronous data * Parallel asynchronous data * In-band secondary channel (V.34 duplex and V.32 bis) * Automatic Rate Adaptation (ARA) in V.34 duplex and V.32 bis * Automatic Mode Selection (AMS) * Digital near-end and far-end echo cancellation * Bulk delay for satellite transmission * Receive dynamic range: - -9 dBm to -43 dBm for V.34 duplex, V.32 bis, V.32, V.22 bis, V.22, and V.23 * 511 pattern generation/detection * V.13 signaling * Diagnostic capability - V.54 inter-DCE signaling - V.54 local analog and remote digital loopback Distinguishing Features (-D90 only) * 2-wire duplex data modem modes with receive data rates up to 56 kbps and send data rates as specified in the V.34 specification - V.90 PCM mode Copyright (c) 2000, 2001 Conexant Systems, Inc., All Rights Reserved. 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The following are trademarks of Conexant Systems, Inc.: Conexant, the Conexant C symbol, and "What's Next in Communications Technologies." Product names or services listed in this publication are for identification purposes only, and may be trademarks of third parties. Third-party brands and names are the property of their respective owners. Reader Response: Conexant strives to produce quality documentation and welcomes your feedback. Please send comments and suggestions to conexant.tech.pubs@conexant.com. For technical questions, contact your local Conexant sales office or field applications engineer. 2 Conexant 101361C V.34/Group 3 High Performance Fax Modem Family FM336Plus Group 3 Facsimile Modem (Entire FM336Plus Family) Technical Specifications The modem satisfies the requirements specified in ITU-T Recommendations V.34 half-duplex, V.17, V.33, V.29, V.27 ter, V.21, and meets the binary signaling requirements of V.8 and T.30 with Annex F. Internal HDLC support eliminates the need for an external serial input/output (SIO) device in the DTE for products incorporating error detection and T.30 protocol. The modem can perform HDLC framing per T.30 at all data speeds. CRC generation/checking along with zero insertion/deletion enhances SDLC/HDLC frame operations. Two FSK (V.21 Ch. 1 and V.21 Ch. 2) flag pattern detectors facilitate FSK detection during highspeed reception. The modem features a programmable DTMF transmitter/receiver and three programmable tone detectors. The FM336Plus modem provides the processing core for a complete facsimile modem design. Configurations and Rates Selectable modem configurations, signaling rates, and data rates are listed in Table 2. Automatic Mode Selection (-D / -D90) When Automatic Mode Selection (AMS) is enabled, the modem configures itself to the highest compatible data rate supported by the remote modem. Automode operation is supported in V.90 (-D90 only), V.34, V.32 bis, V.32, V.22 bis, V.22, V.21, V.23, Bell 208, Bell 212A, and Bell 103 modes. Automatic Rate Adaptation Duplex Data Mode (-D / -D90) The duplex data mode supports Internet facsimile applications. The modem can connect at the highest data rate up to 33600 bps with auto fall back to V.32 bis. The FM336Plus-D and FM336Plus-D90 modems satisfy the requirements specified in ITU-T Recommendations V.34, V.32 bis, V.32, V.22 bis, V.22, V.23, V.21, Bell 208, Bell 212A, and Bell 103. In V.34 duplex, V.34 half-duplex, and V.32 bis modes, Automatic Rate Adaptation (ARA) can be enabled to select the optimal highest acceptable data rate based on the Eye Quality Monitor (EQM). This selection occurs during startup. Two ARA modes are available. ARA in ROM is an adaptive selection made by the modem based upon a fixed ROM table. ARA in RAM is based on the host programmable RAM table and can be changed by the user. ITU-T V.90 PCM Mode (-D90) The ITU-T V.90 PCM mode can receive data at speeds up to 56 kbps from a digitally connected V.90 central site modem. The FM336Plus-D90 takes advantage of the PSTN which is primarily digital to the central office local loop (except for the client modem) and is ideal for applications such as remote access to an Internet Service Provider (ISP), online service, or corporate intranet. The modem can send upstream data at speeds up to the V.34 rate. Data Encoding The data encoding conforms to ITU-T Recommendations V.90 (-D90 only), V.34, V.32 bis, V.32, V.17, V.33, V.29, V.27 ter, V.22 bis, V.22, V.23, or V.21, and is compatible with Bell 208, 212A, or 103, depending on the configuration. Tone Generation The modem can generate single or dual voice-band tones from 0 Hz to 3600 Hz with a resolution of 0.15 Hz and an accuracy of 0.01%. Tones over 3000 Hz are attenuated. DTMF tone generation allows the modem to operate as a programmable DTMF dialer. 101361C Conexant 3 FM336Plus V.34/Group 3 High Performance Fax Modem Family Supervisory Tone Detection Answer Tone (-D / -D90) Three parallel tone detectors (A, B, and C) are provided for supervisory tone detection. The signal path to these detectors is separate from the main received signal path. When the NV25 bit is a zero, the modem generates a 2100 Hz answer tone at the beginning of the answer handshake for 5.0 seconds (V.8) or 3.6 seconds (V.32 bis, V.32, V.22 bis, V.22, V.23, and V.21). The answer tone has 180 phase reversals every 0.45 seconds to disable network echo cancellers (V.8, V.32 bis, and V.32). Each tone detector consists of two cascaded second order IIR biquad filters. The coefficients are host programmable. Each fourth order filter is followed by a level detector which has host programmable turn-on and turn-off thresholds allowing hysteresis. A pre-filter and squarer precede tone detector C. This circuit is useful for detecting a tone with a frequency equal to the difference between two tones that may be simultaneously present on the line. The SQDIS bit may disable the squarer causing tone detector C to be an eight-order filter. The tone detectors are disabled in data mode. The tone detection sample rate is 9600 Hz in V.8 and V.34 modes and is 7200 Hz in non-V.34 modes. The default call progress filter coefficients are based on a 7200 Hz sampling rate and apply to non-V.34 modes only. The maximum detection bandwidth is equal to onehalf the sample rate. Receive Level The modem satisfies performance requirements for received line signal levels from 0 dBm to -43 dBm measured at the receiver analog (TIP and RING) input in V.17, V.33, V.29, V.27 ter, and DTMF modes. In V.90, V.34, V.32 bis, V.32, V.22 bis, V.22, and V.23 modes, the receive level range is from -9 dBm (-15 dBm at RIN) to -43 dBm. (A 6 dB pad is required between TIP/RING and RIN; RIN is 6 dB lower than TIP and RING.) Carrier Recovery The carrier recovery circuit can track a 7 Hz frequency offset in the received carrier. Auto-Dialing and Auto-Answering Control Features are provided to allow the host to perform autodialing and auto-answering. These functions include DTMF or pulse dialing, ring detection, and a comprehensive supervisory tone detection scheme. The major control parameters are host programmable. Clamping Transmitted Data Spectrum Echo Canceller (-D / -D90) The transmitter spectrum is shaped by raised cosine filter functions, either the square root of 12.5% (V.34, V.32 bis, V.32), 20% (V.17, V.33, and V.29), 50% (V.27 ter, Bell 208), or 75% (V.22 bis, Bell 212A). A data echo canceller with near-end and far-end echo cancellation is included for 2-wire duplex V.90/V.34/ V.32 bis/V.32 operation. The combined echo span of near and far cancellers can be up to 40 ms. The proportion allotted to each end is automatically determined by the modem. The delay between near-end and far-end echoes can be up to 1.2 seconds. Scrambler/Descrambler Received Data (RXD) is clamped to a constant mark whenever the Received Line Signal Detector (RLSD) is off. RLSD can be clamped off (RLSDE bit). A self-synchronizing scrambler/descrambler is used in accordance with the selected configuration. Transmit Level The transmitter output level is selectable from 0 dBm to -15 dBm in 1 dB steps and is accurate to 0.5 dB when used with an external hybrid. The output level can also be tuned by changing a gain constant in the modem DSP RAM. The maximum V.34 transmit level for acceptable receive performance should not exceed -9 dBm. 4 Conexant 101361C V.34/Group 3 High Performance Fax Modem Family FM336Plus Table 2. Configurations, Signaling Rates, and Data Rates Configuration Modulation V.90 PCM PCM Carrier Frequency (Hz) 0.01% -- V.34 33600 TCM3 V.34 31200 TCM3 V.34 28800 TCM3 V.34 26400 TCM3 V.34 24000 TCM3 V.34 21600 TCM3 V.34 19200 TCM3 V.34 16800 TCM3 V.34 14400 TCM3 V.34 12000 TCM3 V.34 9600 TCM3 V.34 7200 TCM3 V.34 4800 TCM3 V.34 2400 TCM3 V.32 bis 14400 TCM V.32 bis 12000 TCM V.32 bis 9600 TCM V.32 bis 7200 TCM V.32 bis 4800 V.32 9600 TCM V.32 9600 V.32 4800 V.22 bis 2400 V.22 bis 1200 V.22 1200 V.22 600 V.23 1200/75 V.21 Bell 208 4800 Bell 212A Bell 103 V.17 14400 TCM/V.33 V.17 12000 TCM/V.33 V.17 9600 TCM V.17 7200 TCM V.29 9600 V.29 7200 V.29 4800 V.27 ter 4800 V.27 ter 2400 V.21 Channel 2 TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM TCM QAM TCM QAM QAM QAM DPSK DPSK DPSK FSK FSK DPSK DPSK FSK TCM Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 1800 1800 1800 1800 1800 1800 1800 1800 1200/2400 1200/2400 1200/2400 1200/2400 1700/420 1080/1750 1800 1200/2400 1170/2125 1800 Data Rate (bps) 0.01% 56000 R/V.34 rates T (Note 4) 33600 31200 28800 26400 24000 21600 19200 16800 14400 12000 9600 7200 4800 2400 14400 12000 9600 7200 4800 9600 9600 4800 2400 1200 1200 600 1200/75 Up to 300 4800 1200 Up to 300 14400 Symbol Rate (Symbols/Sec) 8000 Bits/Symbol Data Dynamic Bits/Symbol TCM -- Constellation Points -- 3429 only 3200 min 3000 min 2800 min 2800 min 2400 min Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 2400 only 2400 2400 2400 2400 2400 2400 2400 2400 600 600 600 600 1200 300 1600 600 300 2400 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 6 5 4 3 2 4 4 2 4 2 2 1 1 1 3 2 1 6 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 128 64 32 16 4 32 16 4 16 4 4 4 -- -- 8 4 -- 128 TCM 1800 12000 2400 5 1 64 TCM TCM QAM QAM QAM DPSK DPSK FSK 1800 1800 1700 1700 1700 1800 1800 1750 9600 7200 9600 7200 4800 4800 2400 300 2400 2400 2400 2400 2400 1600 1200 300 4 3 4 3 2 3 2 1 1 1 0 0 0 0 0 0 32 16 16 8 4 8 4 -- Notes: 1. 2. 3. 4. Modulation legend: TCM: Trellis-Coded Modulation FSK: Frequency Shift Keying QAM: Quadrature Amplitude Modulation DPSK: Differential Phase Shift Keying PCM: Pulse Coded Modulation Adaptive, established during handshake: Symbol Rate (Baud) V.34 Low Carrier Frequency (Hz) V.34 High Carrier Frequency (Hz) 2400 1600 1800 2800 1680 1867 3000 1800 2000 3200 1829 1920 3429 1959 1959 For both duplex and half-duplex modes. Maximum data rate. 101361C Conexant 5 FM336Plus V.34/Group 3 High Performance Fax Modem Family Data Formats V.54 Inter-DCE Signaling (-D / -D90) * Data rate: 300-56000 bps (-D90) or 300-33600 bps +1%/-2.5% or +2.3%/-2.5%; up to 300 bps (V.21 and Bell 103); 1200/75 bps (V.23) The modem supports V.56 inter-DCE signaling procedures in synchronous and asynchronous configuration. Transmission and detection of the preparatory, acknowledgment, and termination phases as defined in V.54 are provided. Three control bits (VT54T, V54A, and V54P) in the transmitter allow the host to send the appropriate bit patterns. Three control bits (V54TE, V54AE, and V54PE) in the receiver are used to enable one of the three bit pattern detectors. A status bit (V54DT) indicates when the selected pattern detector has found the corresponding bit pattern. * Bits per character (including Start Bit, Parity Bit, and Stop Bit): 7, 8, 9, 10, or 11 V.13 Remote RTS Signaling (-D / -D90) Serial Synchronous Data * Data rate: 300-56000 bps (-D90) or 300-33600 bps 0.01% * Selectable clock: Internal, external, or slave Serial Asynchronous Data (-D / -D90) - Transmitter: Flag generation, 0-bit stuffing, CRC-16 or CRC-32 generation The modem supports V.13 remote RTS signaling. Transmission and detection of signaling bit patterns in response to a change of state in the RTS bit or the /RTS input signal are provided. This feature may be used to clamp/unclamp the local/RLSD and RXD signals in response to a change in the remote /RTS signal in order to simulate controlled carrier operation in a constant carrier environment. The modem automatically clamps and unclamps /RLSD. - Receiver: Flag detection, 0-bit deletion, CRC-16 or CRC-32 checking 511 Pattern Generation/Detection (-D / -D90) Parallel Synchronous Data * Normal sync: 8-bit data for transmit and receive * Data rate: 300-56000 bps (-D90) or 300-33600 bps 0.01% * SDLC/HDLC support: In synchronous mode, a 511 pattern can be generated and detected (control bit S511). Use of this bit pattern during self-test eliminates the need for external test equipment. Parallel Asynchronous Data (-D / -D90) * Data rate: 300-56000 bps (-D90) or 300-33600 bps +1%/-2.5% or +2.3%/-2.5%; 1200, 300, or 75 bps (FSK) * Data bits per character: 5, 6, 7, or 8 * Parity generation/checking: Odd, Even, or 9th data bit Async/Sync and Sync/Async Conversion (-D / -D90) An asynchronous-to-synchronous converter is provided in the transmitter and a synchronous-to-asynchronous converter is provided in the receiver. The converters operate in both serial and parallel modes. The asynchronous character format is 1 start bit, 5 to 8 data bits, an optional parity bit, and 1 or 2 stop bits. Valid character size, including all bits, is 7, 8, 9, 10, or 11 bits per character. Two ranges of signaling rates are provided: * Basic range: +1% to -2.5% In-Band Secondary Channel (-D / -D90) A duplex in-band secondary channel is provided in V.34 (all speeds) and V.32 bis/V.32 (7200 bps and above) modes. The secondary channel operates in parallel data mode with independent transmit and receive interrupts and data buffers. The main channel may operate in parallel or serial mode. In V.34 modes, the secondary channel rate is 200 bps. In V.32 bis/V.32 modes, the secondary channel rate is 150 bps. This rate is also host programmable in V.32 bis/V.32 modes. Transmit FIFO Buffer and Receive FIFO Buffer * Extended overspeed range: +2.3% to -2.5% When the transmit converter is operating at the basic signaling rate, no more than one stop bit will be deleted per eight consecutive characters. When operating at the extended rate, no more than one stop bit will be deleted per four consecutive characters. Break handling is performed as described in V.14. Two 16-byte first-in first-out (FIFO) data buffers allow the DTE/host to output up to 16 bytes of transmit data to the Transmit FIFO Buffer (TXFIFO) and input up to 16 bytes of accumulated received data from the Receive FIFO Buffer (RXFIFO). Asynchronous characters are accepted on the TXD serial input and are issued on the RXD serial output. 6 Conexant 101361C V.34/Group 3 High Performance Fax Modem Family FM336Plus The RXFIFO is always enabled. The host can enable the TXFIFO. Status bits indicate when the TXFIFO is not full, the TXFIFO is half-full (eight or more bytes loaded), the RXFIFO is empty, and the RXFIFO is halffull. An interrupt mask register allows an interrupt request to be generated whenever the status bits change state. Transmit Extended FIFO Buffer and Receive Extended FIFO Buffer The TXFIFO and RXFIFO can be extended up to an additional 255 bytes with the Transmit Extended FIFO Buffer (TXEFIFO) and the Receive Extended FIFO Buffer (RXEFIFO). The size of the FIFO extension is 255 bytes overall and can be divided between the two extended FIFOs in any proportion. DMA Support for Interrupt Request Lines DMA support is available in synchronous data modes. When DMA support is enabled, the modem /RI and /DSR lines are assigned to Transmitter Request (TXRQ) and Receiver Request (RXRQ) hardware output interrupt request lines, respectively. The TXRQ and RXRQ signals follow the assertion of the Transmit Data Buffer Empty (TDBE) and Receive Data Buffer Full (RDBF) interrupt bits, thereby allowing the DTE/host to respond immediately to the interrupt request without masking out status bits to determine the interrupt source. NRZI Encoding/Decoding NRZI data encoding/decoding may be selected in synchronous modes instead of the default NRZ via control bit NRZIEN. In NRZ encoding, a 1 (one) is represented by a high level and 0 (zero) is represented by a low level. In NRZI encoding, a 1 is represented by no change in level and a 0 is represented by a change in level. ITU-T CRC-32 Support ITU-T CRC-32 generation/checking may be selected instead of the default ITU-T CRC-16 in HDLC mode using DSP RAM access. Caller ID Demodulation Caller ID information can be demodulated in the V.23 1200 receive configuration and presented to the DTE/host in serial (RXD) or parallel (RBUFFER) form. Single Tone Detection in Data Mode A tone detector is provided to perform single tone detection and is available in V.90, V.34, V.32bis, V.32, V.17, V.29, and V.27ter modes. By default, single tone level down to approximately -28 dBm can be detected. The detector can tolerate near-end echo levels up to 10 dB above the call waiting tone level. Telephone Line Interface Line Transformer Interface. V.90/V.34 places high requirements upon the Data Access Arrangement (DAA) connection to the telephone line. Due to the wider bandwidth requirement of V.90 and V.34, the DAA must maintain linearity from 150 to 3950 Hz for V.34, and from 10 to 4000 Hz for V.90. Relay Control. Direct control of the off-hook and talk/data relays is provided. Internal relay drivers allow direct connection to the off-hook and talk/data relays. The talk/data relay output can optionally be used for pulse dial. Speaker Interface. A SPKR output is provided with on/off and volume control logic incorporated in the modem, requiring only an external amplifier to drive a speaker. Clock Sources The modem is offered in two configurations depending upon the selected clock source. One configuration utilizes a crystal source and the other uses an oscillator source. For the crystal configuration, the crystal is connected to XTALI (pin 85) and XTALO (pin 86). For the oscillator source, the oscillator is connected to CLKIN (pin 85) and XTALO (pin 86) is not connected. ADPCM Voice Mode (Conexant Proprietary) A Conexant proprietary Adaptive Differential Pulse Code Modulation (ADPCM) voice coder and decoder (codec) is provided to compress and decompress voice signals for efficient digital storage of voice messages. The codec operates at 32 Kbps, 24 Kbps, or 16 Kbps (4-bit, 3-bit, or 2-bit quantization, respectively) with an 8.0 kHz sampling rate. 101361C Conexant 7 FM336Plus V.34/Group 3 High Performance Fax Modem Family Hardware Interface Signals Figure 1 illustrates the functional interface signals. In this diagram, an active low signal is indicated by a forward slash "/" (e.g., /RESET). A clock intended to activate logic on its rising edge (low-to-high transition) is called active high (e.g., TDCLK), while a clock intended to activate logic on its falling edge (high-to-low transition) is called active low (e.g., /RDCLK). Figure 2 illustrates the modem pin assignments. Table 3 provides the signal descriptions. Electrical and Environmental Specifications Table 4 lists the operating conditions. Table 5 lists the absolute maximum ratings. Table 6 lists the current and power requirements. Package Dimensions Figure 3 shows the package dimensions. Additional Information Additional design information is described in the FM336Plus V.34/Group3 High Performance Fax Modem Designer's Guide (Doc No. 101360A). 8 Conexant 101361C V.34/Group 3 High Performance Fax Modem Family FM336Plus Figure 1. Functional Interface Signals /RTS XTALI /CTS XTALO TXD OR TDCLK CLKIN Oscillator XTCLK V.24 Interface Crystal /RLSD RXD RIN /RDCLK TXA1 /DTR TXA2 /DSR(2) OH /RI(1) RINGD Telephone Line TIP Line Interface RING /TALK /RD Host Processor FM336Plus Modem Family /WR EYEXY /CS EYESYNC D[7:0] EYECLK Optional Eye Pattern Generator RS[4:0] IRQ /RESET TXRQ(1) SPKR RXRQ(2) +5V +3.3V AGND DGND Speaker Amplifier Power Supply NOTE(S): (1) Selectable; TXRQ output replaces /RI output. (2) Selectable; RXRQ output replaces /DSR output. 101360_001 101361C Conexant 9 FM336Plus V.34/Group 3 High Performance Fax Modem Family VSS PLL_VDD RS1 RS0 D7 D6 D5 VDD1 D4 D3 D2 D1 D0 XTALO XTALI/CLKIN VDD1 RESERVED RESERVED GP00 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 PLL_GND 100 99 Figure 2. FM336Plus Family Modem Pin Assignments--100-Pin PQFP RXD RESERVED 15 66 RESERVED VSS 16 65 VSS NC 17 64 XTCLK /RESET 18 63 VDD1 SR4OUT 19 62 VCORE NC 20 61 SR1IO SR4IN 21 60 RESERVED CLK_OUT 22 59 RESERVED EYESYNC 23 58 NC EYECLK 24 57 VDD1 MAVSS 25 56 SLEEP MAVDD 26 55 NC SPKR 27 54 NC TXA2 28 53 VSS TXA1 29 52 VSUB VREF 30 51 RESERVED 50 67 VDD 14 49 /DTR RESERVED OH 68 48 13 RESERVED VDD1 VDD1 47 69 M_STROBE 12 46 IA_SLEEP /CTS M_RXOUT 70 45 11 M_SCK VGG TXD 44 71 M_TXSIN 10 43 YCLK TDCLK M_CLKIN 72 42 9 M_CNTRL_SIN XCLK /RLSD 41 73 NC 8 40 EYEXY /RDCLK RESERVED 74 39 7 RESERVED /DSR /RD 38 75 VDD 6 37 /RI /WR /TALK 76 36 5 RESERVED RINGD /CS 35 77 RESERVED 4 34 /RTS RS4 /POR 78 33 3 MAVSS IRQ RS3 32 VSS 79 31 80 2 VC 1 RS2 RIN RESERVED 101360_002 10 Conexant 101361C V.34/Group 3 High Performance Fax Modem Family FM336Plus Table 3. Signal Descriptions Pin Signal Label I/O Type1 Interface3 Pin Signal Label I/O Type1 Interface3 1 RESERVED -- NC 51 RESERVED -- NC 2 RS2 IA HOST Interface 52 VSUB GND -- 3 RS3 IA HOST Interface 53 VSS GND -- 4 RS4 IA HOST Interface 54 NC -- NC 5 /CS IA HOST Interface 55 NC -- NC 6 /WR IA HOST Interface 56 Sleep MI Modem Interconnect 7 /RD IA HOST Interface 57 VDD1 PWR -- 8 /RDCLK OA DTE Serial Interface 58 NC -- NC 9 /RLSD OA DTE Serial Interface 59 RESERVED -- NC 10 TDCLK OA DTE Serial Interface 60 RESERVED -- NC 11 TXD IA DTE Serial Interface 61 SR1IO MI Modem Interconnect 12 /CTS OA DTE Serial Interface 62 VCORE PWR -- 13 VDD1 PWR -- 63 VDD1 PWR -- 14 RESERVED -- NC 64 XTCLK IA DTE Serial Interface 15 RESERVED -- NC 65 VSS GND -- 16 VSS GND -- 66 RESERVED -- NC 17 NC -- NC 67 RXD OA DTE Serial Interface 18 /RESET IA Modem Interconnect 68 /DTR IA DTE Serial Interface 19 SR4OUT OA Modem Interconnect 69 VDD1 PWR -- 20 NC -- NC 70 IA_SLEEP MI Modem Interconnect 21 SR4IN IA Modem Interconnect 71 VGG PWR -- 22 CLK_OUT OA Modem Interconnect 72 YCLK OA Overhead Signal 23 EYESYNC OA Diagnostic Signal 73 XCLK OA Overhead Signal 24 EYECLK OA Diagnostic Signal 74 EYEXY OA Diagnostic Signal 25 MAVSS GND -- 75 /DSR OA DTE Serial Interface 26 MAVDD PWR -- 76 /RI OA Telephone Line Interface 27 SPKR O(DF) Telephone Line Interface 77 RINGD IA Telephone Line Interface 28 TXA2 O(DD) Telephone Line Interface 78 /RTS IA DTE Serial Interface 29 TXA1 O(DD) Telephone Line Interface 79 IRQ OA HOST Interface 30 VREF MI Modem Interconnect 80 VSS GND -- 31 VC MI Modem Interconnect 81 GP00 MI Modem Interconnect 32 RIN I(DA) Telephone Line Interface 82 RESERVED -- NC 33 MAVSS AGND -- 83 RESERVED -- NC 34 /POR IA Modem Interconnect 84 VDD1 PWR -- 35 RESERVED -- NC 85 XTALI/CLKIN I Overhead Signal 36 RESERVED -- NC 86 XTALO O Overhead Signal 37 /TALK O(DD) Telephone Line Interface 87 D0 IA/OB HOST Interface 38 VDD PWR -- 88 D1 IA/OB HOST Interface 39 RESERVED -- NC 89 D2 IA/OB HOST Interface 40 RESERVED -- NC 90 D3 IA/OB HOST Interface 41 NC -- NC 91 D4 IA/OB HOST Interface 42 M_CNTRL_SIN IA Modem Interconnect 92 VDD1 PWR -- 43 M_CLKIN IA Modem Interconnect 93 D5 IA/OB HOST Interface 44 M_TXSIN IA Modem Interconnect 94 D6 IA/OB HOST Interface 45 M_SCK IA Modem Interconnect 95 D7 IA/OB HOST Interface 46 M_RXOUT IA Modem Interconnect 96 RS0 IA/OB HOST Interface 47 M_STROBE IA Modem Interconnect 97 RS1 IA/OB HOST Interface 48 RESERVED -- NC 98 PLL_VDD PWR -- 49 OH O(DD) Telephone Line Interface 99 VSS GND -- 50 VDD PWR -- 100 PLL_GND GND -- 101361C Conexant 11 FM336Plus V.34/Group 3 High Performance Fax Modem Family Table 3. Signal Descriptions (Continued) Notes: 1. I/O types: MI = Modem interconnect IA, IB = Digital input OA, OB = Digital output I(DA) = Analog input O(DD), O(DF) = Analog output 2. NC = No external connection required. RESERVED = No external connection allowed. 3. Interface Legend: HOST = Modem Control Unit (Host) DTE = Data Terminal Equipment Table 4. Operating Conditions Symbol Min Typ Max Units DSP Supply Voltage Parameter VDD1 3.0 3.3 3.6 VDC IA Supply Voltage VDD 4.75 5.0 5.25 VDC TA 0 25 70 C Operating Ambient Temperature Table 5. Absolute Maximum Ratings Parameter Symbol Limits Units Supply Voltage VDD1 -0.5 to +3.8 V Digital Input Voltage VIND -0.5 to (+5VD +0.5) V Operating Temperature Range TA TSTG -0 to +70 C Storage Temperature Range -55 to +125 C Analog Input Voltage VINA -0.3 to (+5VA + 0.3) V Voltage Applied to Outputs in High Impedance (Off) State VHZ -0.5 to (+5VD + 0.5) V DC Input Clamp Current IIK 20 mA DC Output Clamp Current IOK 20 mA Static Discharge Voltage (25C) VESD 2500 V Latch-up Current (25C) ITRIG 200 mA Table 6. Current and Power Requirements Power Supply Typical Current @ 25C Maximum Current @ 0C Typical Power @ 25C Maximum Power @ 0C VDD1 (+3.3V for DSP) Normal Mode 76 mA 88 mA 250 mW 320 mW Sleep Mode 6 mA 8 mA 20 mW 30 mW Normal Mode 7 mA 10 mA 35 mW 53 mW Sleep Mode 20 A 24 A 0.1 mW 0.13 mW VDD (+5 V for IA) Note: Test conditions: VDD1 (for DSP) = +3.3 VDC for typical values; VDD1 = +3.6 VDC for maximum values. VDD (for IA) = +5 VDC for typical values; VDD = +5.25 VDC for maximum values. 12 Conexant 101361C V.34/Group 3 High Performance Fax Modem Family FM336Plus Figure 3. Package Dimensions--100-Pin PQFP See detail A D D1 CHAM (4X) D2 E1 E E1 E2 PIN 1 REF e b TOP VIEW SIDE VIEW Dim. A A1 A2 D D1 D2 E E1 E2 L A A2 L1 e c DETAIL A L 2.4 MAX 0.05 0.35 2.0 REF 22.95 23.45 20.0 REF 18.85 REF 16.95 17.45 14.0 REF 12.35 REF 0.73 1.03 1.6 REF 0.65 BSC Inches* Max. Min. 0.0945 MAX 0.0020 0.0138 0.0787 REF 0.9035 0.9232 0.7874 REF 0.7421 REF 0.6673 0.6870 0.5512 REF 0.4862 REF 0.0287 0.0406 0.0630 REF 0.0256 BSC b 0.25 0.45 0.0098 0.0177 c 0.13 0.19 0.0051 0.0075 Coplanarity A1 Millimeters Min. Max. 0.10 MAX 0.004 MAX Ref: 100-PIN PQFP (GP00-D234) L1 * Metric values (millimeters) should be used for PCB layout. English values (inches) are converted from metric values and may include round-off errors. 101360_010 101361C Conexant 13 www.conexant.com General Information: U.S. and Canada: (800) 854-8099 International: (949) 483-6996 Headquarters - Newport Beach 4311 Jamboree Rd. Newport Beach, CA 92660-3007