22 ATR4255
4837A–AUDR–10/04
6.3 3rd-order intercept
point 1, 2 IP3FMmix 120 dBµVC
6.4 Noise figure (DSB) Generator resistance
200 Ω43, 44 NFFMmix 10 dB C
6.5 Input resistance 1, 2 1.6 kΩD
6.6 Input capacitance Pin 2 AC-grounded 1 5 pF D
6.7 Maximum differential
output vltage VS = 8.5 V 43, 44 12 Vpp D
6.8 Output resistance 43, 44 100 kΩD
71
st IF FM Amplifier, FM Mode (Bit 92 = 1, Bit 93 = 0)
7.1 Minimum voltage gain Bits 89, 90, 91 = 0 38, 30 19 21 23 dB A
7.2 Temperature
coefficient of gain Bit 66 = 0 TKmin 0.039 dB/K D
7.3 Temperature
coefficient of gain Bit 66 = 1 TKmax 0.044 dB/K D
7.4 Input resistance Pin 39 AC-grounded 38 270 330 400 ΩD
7.5 Input capacitance Pin 39 AC-grounded 38 5 pF D
7.6 Output resistance 30 270 330 400 ΩD
81
st IF AM Amplifier, AM Mode (Bit 92 = 0, Bit 93 = 1)
8.1 Maximum voltage
gain 330 Ω load at pin 30 30, 33 16 dB D
8.2 Gain control range 26 dB D
8.3 Noise figure Generator resistance
2.5 kΩNFIFAM 20 dB C
8.4 Input resistance 33 10 kΩD
8.5 Input capacitance Pin 39 AC-grounded 33 1 pF D
8.6 Output resistance 30 270 330 400 ΩD
92
nd Mixer
9.1 FM supply current Bit 92 = 1, bit 93 = 0 23, 24 10 14 16 mA A
9.2 AM/WB supply
current Bit 92 = 0, bit 93 = 1 23, 24 8 10 12 mA D
9.3 Conversion
conductance
26, 23,
24 2mSD
9.4 Noise figure (SSB) Generator resistance
330 Ω (pin 26) 23, 24 NFMix2 23 dB C
9.5 3rd-order input
intercept point 26 IP3Mix2 132 dBµV C
9.6 AM/WB output
resistance Bit 92 = 0, bit 93 = 1 23, 24 100 kΩD
9.7
Maximum differential
output voltage
AM/WB
VS = 8.5 V 23, 24 12 Vpp D
Electrical Characteristics (Continued)
Test conditions (unless otherwise specified): VS = 8.5 V, Tamb = 25°C.
No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type*
*) Type means: A =100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter