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参数资料
型号： TLV320AIC22PTR
厂商： Texas Instruments, Inc.
元件分类： Codec
英文描述： DUAL VOIP CODEC
中文描述： 双VoIP编解码器
文件页数： 4/55页
文件大小： 763K
代理商： TLV320AIC22PTR
TLV320AIC22
DUAL VOIP CODEC
SLAS281B – JULY 2000 – REVISED JUNE 2002
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DAC channel passband frequency characteristics with DAC connected to 8-
speaker driver
(SPOUT) (see Note 11 and Note 12)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I
t i
l t DIN i 0 dB
PGA
i
0 dB
0 Hz to 3 kHz
–0.2
0.4
Input signal at DIN is 0 dBr, PGA gain = 0 dB,
Sampling rate=8kHz
3.3 kHz
–0.4
0.2
dB
Gain relative to gain at 1 02 kHz
Sam ling rate = 8 kHz
3.4 kHz
–1.5
–0.1
Gain relative to gain at 1.02 kHz
I
t i
l t DIN i 0 dB
PGA
i
0 dB
0 Hz to 6 kHz
–0.2
0.4
Input signal at DIN is 0 dBr, PGA gain = 0 dB,
Sampling rate = 16 kHz
6.6 kHz
–0.5
0.2
dB
Sam ling rate = 16 kHz
6.8 kHz
–1.5
–0.1
NOTES: 11. The filter gain is measured with respect to the gain at 1020 Hz.
12. The input signal is the digital equivalent of a sine wave (digital full scale = 0 dBr). A 0 dBr or full-scale digital input results in a 5-V(P-P)
differential output.
DAC channel passband frequency characteristics with DAC connected to line output driver
(LNOUT) (see Note 10 and Note 11)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
0 Hz to 3 kHz
–0.2
0.4
Input signal at DIN is 0 dBr, PGA gain = 0 dB,
3.3 kHz
–0.4
0.2
In ut signal at DIN is 0 dBr, PGA gain = 0 dB,
Sampling rate = 8 kHz,
Pl
l
kH
3.4 kHz
–1
–0.1
dB
Pole select = 64, 32, 21.3, or 16 kHz
4 kHz
–12.5
Gain relative to gain at 1 02 kHz
Above 4.6 kHz
–40
Gain relative to gain at 1.02 kHz
0 Hz to 6 kHz
–0.2
0.4
Input signal at DIN is 0 dBr, PGA gain = 0 dB,
6.6 kHz
–0.4
0.2
In ut signal at DIN is 0 dBr, PGA gain = 0 dB,
Sampling rate = 16 kHz,
Pl
l
kH
6.8 kHz
–1
–0.3
dB
Pole select = 64, 32, 21.3, or 16 kHz
8 kHz
–12.5
Above 9.2 kHz
–40
NOTES: 10. The input signal is the digital equivalent of a sine wave (digital full scale = 0 dBr). A 0 dBr or full-scale digital input results in a 4-V(P-P)
differential output.
11. The filter gain is measured with respect to the gain at 1020 Hz.
line output out-of-band performance characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Pole select = 64 kHz
32
√
Line output out-of-band
Noise measured in 1-kHz bandwidth from
4 6 kHz to 300 kHz; 10 dB input signal; PGA
Pole select = 32 kHz
20
V/√Hz
performance
4.6 kHz to 300 kHz; –10-dB input signal; PGA
gain is 0 dB; output load = 600
.
Pole select = 21.3 kHz
14
V/√Hz
gain is 0 dB out ut load
600
.
Pole select = 16 kHz
11
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