TLV320DAC3100-Q1
SLAS896A –JULY 2013–REVISED AUGUST 2013
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Recommended Operating Conditions (continued)
over operating free-air temperature range (unless otherwise noted) MIN NOM MAX UNIT
Stereo line output load AC coupled to RL10 kΩ
impedance
MCLK(3) Master clock frequency IOVDD = 3.3 V 50 MHz
fSCL SCL clock frequency 400 kHz
TAOperating free-air temperature –40 85 °C
(3) The maximum input frequency should be 50 MHz for any digital pin used as a general-purpose clock.
3.4 Electrical Characteristics
At 25°C, AVDD = HPVDD = IOVDD = 3.3 V, SPKVDD = 3.6 V, DVDD = 1.8 V, fS(audio) = 48 kHz, CODEC_CLKIN = 256 ×
fS, PLL = Off, VOL/MICDET pin disabled (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INTERNAL OSCILLATOR-RC_CLK
Oscillator frequency 8.2 MHz
VOLUME CONTROL PIN (ADC); VOL/MICDET pin enabled
VOL/MICDET pin configured as volume control (page 0 / register 116, bit D7 = 1 and 0.5 x
Input voltage range 0 V
page 0 / register 67, bit D7 = 0) AVDD
Input capacitance 2 pF
Volume control steps 128 Steps
Microphone Bias
Page 1 / register 46, bits D1–D0 = 10 2.25 2.5 2.75
Voltage output V
Page 1 / register 46, bits D1–D0 = 01 2
At 4-mA load current, page 1 / register 46, bits D1–D0 = 10 (MICBIAS = 2.5 V) 5
Voltage regulation mV
At 4-mA load current, page 1 / register 46, bits D1–D0 = 01 (MICBIAS = 2 V) 7
AUDIO DAC
DAC HEADPHONE OUTPUT, AC-coupled load = 16 Ω(single-ended), driver gain = 0 dB, parasitic capacitance = 30 pF
Full-scale output voltage (0 dB) Output common-mode setting = 1.65 V 0.707 VRMS
SNR Signal-to-noise ratio Measured as idle-channel noise, A-weighted(1) (2) 80 95 dB
THD Total harmonic distortion 0-dBFS input –85 –65 dB
THD+N Total harmonic distortion + noise 0-dBFS input –82 –60 dB
Mute attenuation 87 dB
PSRR Power-supply rejection ratio(3) Ripple on HPVDD (3.3 V) = 200 mVp-p at 1 kHz –62 dB
RL= 32 Ω, THD+N = –60 dB 20
POMaximum output power mW
RL= 16 Ω, THD+N = –60 dB 60
DAC LINEOUT (HP Driver in Lineout Mode)
SNR Signal-to-noise ratio Measured as idle-channel noise, A-weighted 95 dB
THD Total harmonic distortion 0-dBFS input, 0-dB gain –86 dB
THD+N Total harmonic distortion + noise 0-dBFS input, 0-dB gain –82 dB
DAC Digital Interpolation Filter Characteristics
See Section 5.5.1.4 for DAC interpolation filter characteristics.
DAC Output to Class-D SPEAKER OUTPUT; Load = 4 Ω(Differential), 50 pF
SPKVDD = 3.6 V, BTL measurement, DAC input = 0 dBFS, CM = 1.8 V, class-D gain 2.3
= 6 dB, THD = –16.5 dB
Output voltage VRMS
SPKVDD = 3.6 V, BTL measurement, DAC input = –2 dBFS, CM = 1.8 V, class-D 2.1
gain = 6 dB, THD = –20 dB
Output, common-mode SPKVDD = 3.6 V, BTL measurement, DAC input = mute, class-D gain = 6 dB 1.8 V
SPKVDD = 3.6 V, BTL measurement, class-D gain = 6 dB, measured as idle-channel
SNR Signal-to-noise ratio 88 dB
noise, A-weighted (with respect to full-scale output value of 2.3 VRMS)(1) (2)
SPKVDD = 3.6 V, BTL measurement, DAC input = –6 dBFS, CM = 1.8 V, class-D
THD Total harmonic distortion –65 dB
gain = 6 dB
(1) Ratio of output level with 1-kHz full-scale sine-wave input, to the output level with the inputs short-circuited, measured A-weighted over a
20-Hz to 20-kHz bandwidth using an audio analyzer.
(2) All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter may
result in higher THD+N and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass filter
removes out-of-band noise, which, although not audible, may affect dynamic specification values.
(3) DAC to headphone-out PSRR measurement is calculated as PSRR = 20 × log (ΔVHPL /ΔVHPVDD).
6ELECTRICAL SPECIFICATIONS Copyright © 2013, Texas Instruments Incorporated
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