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參數(shù)資料
| 型號： | TWL1102PBS |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP32 |
| 封裝： | PLASTIC, TQFP-32 |
| 文件頁數(shù)： | 27/29頁 |
| 文件大?。?/td> | 387K |
| 代理商： | TWL1102PBS |
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TWL1102
VOICE-BAND AUDIO PROCESSOR (VBAP
)
SLVS264 – NOVEMBER 1999
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at 2.7 V and 25
° C (unless otherwise noted)
supply current
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Operating, EAR1 selected, MicBias disabled
6
7
mA
Operating, EAR2 selected, MicBias disabled
5.4
6
mA
I
Supply current from VDD
Power down, Reg 2 bit 7 = 1, MClk not present
(see Note 3)
0.5
10
A
Power down, Reg 2 bit 7 = 0, MClk not present
(see Note 3)
25
40
A
ton(i)
Power-up time from power down
5
10
ms
NOTE 3: VIHMIN = VDD, VILMAX = VSS
digital interface
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage PCMO and BuzzCon
IOH = – 3.2 mA,
VDD = 3 V
DVDD
V
VOL
Low-level output voltage PCMO and BuzzCon
IOL = 3.2 mA,
VDD = 3 V
0
V
IIH
High-level input current, any digital input
VI = VDD
10
A
IIL
Low-level input current, any digital input
VI = VSS
10
A
CI
Input capacitance
10
pF
Co
Output capacitance
20
pF
RL
Load impedance (BuzzCon)
5
k
microphone interface
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIO
Input offset voltage at MIC1N, MIC2N
See Note 4
–5
5
mV
IIB
Input bias current at MIC1N, MIC2N
– 200
200
nA
Ci
Input capacitance at MIC1N, MIC2N
5
pF
Vn
Microphone input referred noise, psophometric weighted,
(C-message weighted is similar)
Micamp 1 gain = 23.5 dB
Micamp 2 gain = 0 dB
3.0
7.7
Vrms
IOmax
Output source current – MBIAS
1
1.2
mA
V(mbias)
Microphone bias supply voltage (see Note 5)
2.4
2.5
2.55
V
MICMUTE
–80
dB
Input impedance
Fully differential
35
60
100
k
NOTES:
4. Measured while MIC1P and MIC1N are connected together. Less than 5 mV offset results in 0 value code on PCMOUT.
5. Not a JEDEC symbol.
speaker interface
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Earphone AMP1 output power ( See Note 6)
VDD = 2.7 V, fully differential, 16- load,
3-dBm0 output, RGXPA = – 2 dB
120.9
151.1
mW
Earphone AMP1 output power ( See Note 6)
VDD = 2.7 V, fully differential, 32- load,
3-dBm0 output, RGXPA = –1 dB
76.1
95.1
mW
Earphone AMP2 output power ( See Note 6)
VDD = 2.7 V, single ended, 32- load,
3-dBm0 output
10
12.5
mW
VOO
Output offset voltage at EAR1
Fully differential
± 5
±30
mV
Maximum output current for EAR1(rms)
3-dBm0 input, 16-
load
86.9
108.6
IOmax
Maximum output current for EAR1(rms)
3-dBm0 input, 32-
load
48.7
60.8
mA
IOmax
Maximum output current for EAR2 (rms)
3-dBm0 input
17.7
22.1
mA
EARMUTE
–80
dB
NOTE 6: Maximum power is with a load impedance of –25%.
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