參數(shù)資料
型號: TLV320AIC23BGQER
廠商: Texas Instruments, Inc.
元件分類: Codec
英文描述: STEREO AUDIO CODEC 8 TO 96 KHZ WITH INTEGRATED HEADPHONE AMPLIFIER
中文描述: 立體聲音頻編解碼8至96與集成耳機放大器KHZ可
文件頁數(shù): 16/50頁
文件大小: 499K
代理商: TLV320AIC23BGQER
24
2.3.4
Stereo Headphone Output
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
0-dB full-scale output voltage
1.0
VRMS
Maximum output power, PO
RL = 32
RL = 16
AVDD = 3.3 V
AVDD = 3.3 V,
1 kHz output
30
mW
40
Signal-to-noise ratio, A-weighted (see Note 4)
90
97
dB
Total harmonic distortion
PO = 10 mW
PO = 20 mW
0.1
%
1.0
Power supply rejection ratio
1 kHz, 100 mVpp
1 kHz output
50
dB
Programmable gain
73
6
dB
Programmable-gain step size
1
dB
Mute attenuation
NOTE 4: All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter results
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.
1 kHz output
80
dB
2.3.5
Analog Reference Levels
PARAMETER
MIN
TYP
MAX
UNIT
Reference voltage
AVDD/2 50 mV
AVDD/2 + 50 mV
V
k
Divider resistance
40
50
60
2.3.6
Digital I/O
PARAMETER
MIN
TYP
MAX
UNIT
VIL
VIH
VOL
VOH
Input low level
0.3
×
BVDD
V
Input high level
0.7
×
BVDD
V
Output low level
0.1
×
BVDD
V
Output high level
0.9
×
BVDD
V
2.3.7
Supply Current
PARAMETER
TEST CONDITIONS
MIN
20
TYP
24
MAX
UNIT
Record and playback (all active)
26
Record and playback (osc, clk, and MIC output powered down)
16
18
20
Total supply current,
No input signal
Line playback only
6
7.5
9
ITOT
Record only
11
13.5
15
mA
Analog bypass (line in to line out)
4
4.5
6
Power down,
AVDD = BVDD = HPVDD = 3.3 V
DVDD = 1.5 V,
Oscillator enabled
Oscillator disabled
0.8
1.5
0.01
3
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