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參數(shù)資料
| 型號： | TWL1110PBSR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP32 |
| 封裝： | PLASTIC, QFP-32 |
| 文件頁數(shù)： | 40/40頁 |
| 文件大?。?/td> | 564K |
| 代理商： | TWL1110PBSR |
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TWL1110
VOICE-BAND AUDIO PROCESSOR (VBAP
)
SLWS103 – NOVEMBER 2000
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and free-air temperature (unless
otherwise noted) (continued)
digital interface
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage PCMO (BuzzCon)
IOH = – 3.2 mA,
VDD = 3 V
DVDD – 0.25
V
VOL
Low-level output voltage PCMO
IOL = 3.2 mA,
VDD = 3 V
0.25
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
0
5
10
15
20
25
30
35
40
45
–50
0
50
100
0
5
10
15
20
25
30
–50
0
50
100
SUPPLY CURRENT
vs
FREE AIR TEMPERATURE
(Detector OFF)
SUPPLY CURRENT
vs
FREE AIR TEMPERATURE
(Detector ON)
DDI
Supply
Current
–
–A
DDI
Supply
Current
–
–A
TA – Free-Air Temperature – °CTA – Free-Air Temperature – °C
VDD = 3.3 V
VDD = 3.0 V
VDD = 3.3 V
VDD = 3.0 V
VDD = 2.7 V
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
– 300
300
nA
Ci
Input capacitance at MIC1N, MIC2N
5
pF
Vn
Microphone input referred noise, psophometrically weighted,
(C-message weighted is similar)
MIC Amp 1 gain = 23.5 dB
MIC Amp 2 gain = 0 dB
3
4.7
Vrms
IOmax
Output source current – MBIAS
1
1.2
mA
V(mbias)
Microphone bias supply voltage (see Note 5)
2.3
2.5
2.65
V
MICMUTE
–80
dB
Input impedance
Fully differential
35
60
100
k
NOTES:
4. Measured while MIC1P and MIC1N are connected together. Less than 0.5-mV offset results in 0 value code on PCMOUT.
5. Not a JEDEC symbol.
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