參數(shù)資料
型號： TLV320AIC3253IRGER
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQCC24
封裝： 4 X 4 MM, PLASTIC, QFN-24
文件頁數(shù)： 34/35頁
文件大?。?/td> 738K
代理商： TLV320AIC3253IRGER
SLOS631 – MARCH 2010
www.ti.com
Electrical Characteristics, Audio Outputs
At 25°C, AVdd, DVdd, IOVDD = 1.8V, LDO_in = 1.8V, AVdd LDO disabled, fs (Audio) = 48kHz, Cref = 10 mF on REF PIN,
PLL disabled unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Audio DAC – Stereo Single-Ended Headphone Output
Load = 16
(single-ended), 50pF
Headphone Output on AVdd Supply,
Input & Output CM=0.9V, DOSR = 128,
Device Setup
MCLK=256* fs, Channel Gain=0dB
word length = 16 bits;
Processing Block = PRB_P1
Power Tune = PTM_P3
Full scale output voltage (0dB)
0.5
VRMS
SNR
Signal-to-noise ratio, A-weighted(1) (2)
All zeros fed to DAC input, modulator in
88
100
dB
excited state
DR
Dynamic range, A-weighted (1) (2)
–60dB 1kHz input full-scale signal, Word
99
dB
Length = 20 bits, Power Tune = PTM_P4
THD+N
Total Harmonic Distortion plus Noise
–3dB full-scale, 1-kHz input signal
–80
–70
dB
DAC Gain Error
0dB, 1kHz input full scale signal
±0.1
dB
DAC Mute Attenuation
Mute
127
dB
DAC channel separation
–1dB, 1kHz signal, between left and right HP
92
dB
out
100mVpp, 1kHz signal applied to AVdd
70
dB
DAC PSRR
100mVpp, 217Hz signal applied to AVdd
75
dB
RL=16, Output Stage on AVdd = 1.8V
13
THDN < 1%, Input CM=0.9V,
Output CM=0.9V, Channel Gain=2dB
Power Delivered
mW
RL=16 Output Stage on LDOIN = 3.3V,
47
THDN < 1% Input CM=0.9V,
Output CM=1.65V, Channel Gain=8dB
Audio DAC – Stereo Single-Ended Headphone Output
Load = 16
(single-ended), 50pF,
Headphone Output on AVdd Supply,
Input & Output CM=0.75V; AVdd=1.5V,
Device Setup
DOSR = 128, MCLK=256* fs,
Channel Gain = –2dB, word length=20-bits;
Processing Block = PRB_P1,
Power Tune = PTM_P4
Full scale output voltage (0dB)
0.375
VRMS
SNR
Signal-to-noise ratio, A-weighted(1) (2)
All zeros fed to DAC input, modulator in
99
dB
excited state
DR
Dynamic range, A-weighted (1) (2)
-60dB 1 kHz input full-scale signal
98
dB
THD+N
Total Harmonic Distortion plus Noise
–3dB full-scale, 1-kHz input signal
–84
dB
Audio DAC – Mono Differential Headphone Output
(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
8
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3253
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