Datasheet

TLV320AIC1110
SLAS359 – DECEMBER 2001
10
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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
V
OH
High-level output voltage PCMO (BUZZCON) I
OH
= –3.2 mA, V
DD
= 3 V DV
DD
–0.25 V
V
OL
Low-level output voltage PCMO I
OL
= 3.2 mA, V
DD
= 3 V 0.25 V
I
IH
High-level input current, any digital input V
I
= V
DD
10 µA
I
IL
Low-level input current, any digital input V
I
= V
SS
10 µA
C
i
Input capacitance 10 pF
C
o
Output capacitance 20 pF
R
L
Load impedance (BUZZCON) 5 kΩ
microphone interface
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IO
Input offset voltage at MIC1N, MIC2N See Note 4 –5 5 mV
I
IB
Input bias current at MIC1N, MIC2N –300 300 nA
C
i
Input capacitance at MIC1N, MIC2N 5 pF
V
n
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 µV
rms
I
O
max 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 kΩ
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.