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參數(shù)資料
| 型號： | TLV320AIC22PTR |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | Codec |
| 英文描述： | DUAL VOIP CODEC |
| 中文描述： | 雙VoIP編解碼器 |
| 文件頁數(shù)： | 5/55頁 |
| 文件大小： | 763K |
| 代理商： | TLV320AIC22PTR |
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TLV320AIC22
DUAL VOIP CODEC
SLAS281B – JULY 2000 – REVISED JUNE 2002
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DAC characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Dynamic range
82
dB
Intrachannel isolation (measured at SPOUT)
All zeros applied to DAC. Full-scale
signal applied to ADC at HSIN.
85
dB
EG
Gain error, 0 dB
VI = –1 dB at 1020 kHz
–1
1
dB
Idle channel noise
0 kHz to 4 kHz, See Note 12
30
75
V rms
Channel delay
13/fs
s
VO
Analog output voltage, (SPOUTP–SPOUTM)
Differential for full-scale digital input;
See Note 13 and Note 14.
±2.5
V(P P)
VO
Analog output voltage (handset/headset and line
interfaces)
Differential for full-scale digital input;
See Note 13 and Note 14.
±2
V(P–P)
NOTES: 12. The conversion rate is 8 kHz.
13. This amplifier should be used only in differential mode.
14. Common mode: 1.5 V
power-supply rejection characteristics (see Note 15)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD(1)
Supply-voltage rejection ratio, ADC channel, AVDD1, and AVDD2
fI = 0 to fs/2
–50
dB
VDD(2)
Supply-voltage rejection ratio, DAC channel, and DVDD
fI = 0 to 30 kHz
–50
dB
NOTE 15: Power-supply rejection measurements are made with both the ADC and the DAC channels idle and a 200-mV peak-to-peak signal
applied to the appropriate supply.
power-supply characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IDD(analog)
Codec power-supply current, analog (including drivers);
AVDD1, AVDD2
Operating
30.8
61.5
IDD(digital)
Codec power-supply current, digital; DVDD.
Operating
5.5
mA
IDD(speaker)
Power-supply current, 8-
speaker driver; AVDD3.
Operating
200
400
mA
IDD(quiescent) 8- driver dc current without swing at output; AVDD3.
1
IDD(analog)
Codec power-supply current, analog (hardware power
down mode)
PWRDWN pin = logic 1
100
A
IDD(digital)
Codec power-supply current, digital (hardware power down
mode)
PWRDWN pin = logic 1
2.2
4
mA
IDD(analog)
Codec power-supply current, analog
Analog master power
down
500
A
speaker driver characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VN(PP)
Output peak-to-peak voltage (between
SPOUTP and SPOUTM)
AVDD3 = 3.3 V, fully differential, 8- load,
0 dBr = full-scale digital input; PGA
gain = 0 dB.
5
V(P–P)
VOO
Output offset voltage
Fully differential
±5
mV
THD
Total harmonic distortion
AVDD3 = 3.3 V, 80-mW output, 8- load
–60
dB
Max output power (peak)
RI = 8 , AVDD3 = 3.3 V
390
mW
Mute
–80
dB
Max capacitive load
25
pF
Minimum resistive load
8
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