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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： | 3/55页 |
| 文件大小： | 763K |
| 代理商： | TLV320AIC22PTR |
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TLV320AIC22
DUAL VOIP CODEC
SLAS281B – JULY 2000 – REVISED JUNE 2002
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DAC dynamic performance characteristics (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
3 dB PGA
i
0 dB
THD
–72
VI = –3 dBr, PGA gain = 0 dB,
Sampling rate = 16 kHz See Note 10
SNR
–73
dB
Sam ling rate = 16 kHz, See Note 10
THD+N
–70
DAC dynamic performance with line-output driver
V
10 dB PGA
i
0 dB
THD
–72
DAC dynamic erformance with line out ut driver
(LNOUT), 16-kHz pole selected, 1000-Hz input
VI = –10 dBr, PGA gain = 0 dB,
Sampling rate = 16 kHz See Note 10
SNR
–73
dB
signal
Sam ling rate = 16 kHz, See Note 10
THD+N
–70
V
40 dB PGA
i
0 dB
THD
–50
VI = –40 dBr, PGA gain = 0 dB,
Sampling rate = 16 kHz See Note 10
SNR
–40
dB
Sam ling rate = 16 kHz, See Note 10
THD+N
–38
V
3 dB PGA
i
0 dB
THD
–72
VI = –3 dBr, PGA gain = 0 dB,
Sampling rate = 16 kHz See Note 10
SNR
–73
dB
Sam ling rate = 16 kHz, See Note 10
THD+N
–70
DAC dynamic performance with line-output driver
V
10 dB PGA
i
0 dB
THD
–72
DAC dynamic erformance with line out ut driver
(LNOUT), 64-kHz pole selected, 1000-Hz input
il
VI = –10 dBr, PGA gain = 0 dB,
Sampling rate = 16 kHz See Note 10
SNR
–73
dB
signal
Sam ling rate = 16 kHz, See Note 10
THD+N
–70
V
40 dBr PGA gain
0 dB
THD
–50
VI = –40 dBr, PGA gain = 0 dB,
Sampling rate = 16 kHz, See Note 10
SNR
–40
dB
Sam ling rate = 16 kHz, See Note 10
THD+N
–38
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.
DAC channel transfer response characteristics over recommended ranges of supply voltage and
operating free-air temperature (see Note 10 and Note 11), with DAC connected to handset (HSOUT)
or headset (HDOUT) drivers
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
0 Hz to 3 kHz
–0.3
0.3
Input signal at DIN is 0 dBr,
3.3 kHz
–0.5
0.1
In ut signal at DIN is 0 dBr,
PGA gain = 0 dB,
Sli
kH
3.4 kHz
–1
–0.1
dB
Sampling rate = 8 kHz
4 kHz
–12.5
Gain relative to gain at 1 02 kHz
4.6 kHz, and above
–40
Gain relative to gain at 1.02 kHz
0 Hz to 6 kHz
–0.3
0.3
Input signal at DIN is 0 dBr,
6.6 kHz
–0.5
0.1
In ut signal at DIN is 0 dBr,
PGA gain = 0 dB,
Sli
kH
6.8 kHz
–1
–0.1
dB
Sampling rate = 16 kHz
8 kHz
–12.5
9.2 kHz, and above
–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.
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