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參數(shù)資料
| 型號(hào)： | TWL1107PW |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁(yè)數(shù)： | 16/19頁(yè) |
| 文件大?。?/td> | 259K |
| 代理商： | TWL1107PW |
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TWL1107
VOICE-BAND AUDIO PROCESSOR (VBAP
)
SLWS119 – JUNE 2001
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air temperature
(unless otherwise noted) (continued)
speaker interface
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD = 2.7 V, fully differential, 8- load,
3-dBm0 output, volume control = – 3 dB,
PCMI data input to – 4 dB level
161
200
Earphone AMP output power (see Note 5)
VDD = 2.7 V, fully differential, 16- load,
3-dBm0 output, volume control = – 3 dB,
PCMI data input to – 2 dB level
128
160
mW
VDD = 2.7 V, fully differential, 32- load,
3-dBm0 output, volume control = – 3 dB,
PCMI data input to – 1 dB level
81
100
3-dBm0 input, 8-
load
141
178
IOmax
Maximum output current for EAROUT (rms)
3-dBm0 input, 16-
load
90
112
mA
IOmax
Maximum out ut current for EAROUT (rms)
3-dBm0 input, 32-
load
50
63
mA
EARMUTE
– 80
dB
NOTE 5: Maximum power is with a load impedance of –20%, at 25
°C.
transmit gain and dynamic range, companded mode (A-law) or linear mode selected (see Notes 6 and 7)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Transmit reference-signal level (0dB)
Differential, MIC Amp 1 configured for 23.5 dB gain
88
mVpp
Overload-signal level (3 dBm0)
Differential, MIC Amp 1 configured for 23.5 dB gain
124
mVpp
Absolute gain error
0 dBm0 input signal, 2.7 V
≤ VDD ≤ 3.3 V
–1
1
dB
Gi
ith i
t l
l
lti
t
i
t
MICIN–, MICIN+ to PCMO at 3 dBm0 to – 30 dBm0
– 0.5
0.5
Gain error with input level relative to gain at
–10 dBm0 MICIN MICIN+ to PCMO
MICIN–, MICIN+ to PCMO at – 31 dBm0 to – 45 dBm0
–1
1
dB
–10 dBm0 MICIN, MICIN+ to PCMO
MICIN–, MICIN+ to PCMO at – 46 dBm0 to – 55 dBm0
–1.2
1.2
dB
NOTES:
6. Unless otherwise noted, the analog input is 0 dB, 1020-Hz sine wave, where 0 dB is defined as the zero-reference point of the channel
under test.
7. The reference signal level, which is input to the transmit channel, is defined as a value 3 dB below the full-scale value of 124-mVpp.
transmit filter transfer, companded mode (A-law) or linear mode selected
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
fMIC < 100 Hz
– 0.5
0.5
fMIC = 200 Hz
– 0.5
0.5
fMIC = 300 Hz to 3 kHz
– 0.5
0.5
Gain relative to input signal gain at 1.02 kHz
fMIC = 3.4 kHz
– 1.5
0
dB
Gain relative to in ut signal gain at 1.02 kHz
fMIC = 4 kHz
– 14
dB
fMIC = 4.6 kHz
– 35
fMIC = 8 kHz
– 47
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