TWL1106
VOICEBAND AUDIO PROCESSOR (VBAP)
SLWS094 – JUNE 2001
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 2)
MIN
NOM
MAX
UNIT
Supply voltage, DVDD, EARVDD
2.7
3.3
V
High-level input voltage, VIH
0.7xVDD
V
Low-level input voltage, VIL
0.3xVDD
V
Load impedance between EAROUT+ and EAROUT–, RL
8 to 32
Input voltage, MICIN
0.9xVDD
V
Operating free-air temperature, TA
–40
85
_C
NOTES:
1. To avoid possible damage and resulting reliability problems to these CMOS devices, follow the power-up sequence detailed in the
system reliability features paragraph.
2. Voltages are with respect to DVSS, and EARVSS.
electrical characteristics over recommended ranges of supply voltage and operating free-air temperature
(unless otherwise noted)
supply current
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I
S ppl c rrent from V
Operating
5
7
mA
IDD
Supply current from VDD
Power down, MCLK not present
10
30
A
tpu
Power-up time from power down
10
ms
digital interface
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage, PCMO
IOH = –3.2 mA,
VDD = 3 V
DVDD –0.25
V
VOL
Low-level output voltage, PCMO
IOL = 3.2 mA,
VDD = 3 V
0.2
V
IIH
High-level input current, any digital input
VI = 2.2 V to VDD
10
A
IIL
Low-level input current, any digital input
VI = 0 to 0.8 V
10
A
CI
Input capacitance
10
pF
Co
Output capacitance
20
pF
microphone interface
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIO
Input offset voltage
See Note 3
–5
5
mV
IIB
Input bias current
–250
250
nA
Ci
Input capacitance
5
pF
Vn
Microphone input referred noise, psophometric weighted
MIC Amp 1 gain = 23.5 dB,
See Note 4
2.9
4
Vrms
MICMUTE
–80
dB
NOTES:
3. Measured while MICIN+ and MICIN– are connected together. Less than a 0.5-mV offset results in 0 value code on PCMOUT.
4. Configured as shown in Figure 3.