DS96-L147-203 CONEXANT [Conexant Systems, Inc], DS96-L147-203 Datasheet - Page 65
DS96-L147-203
Manufacturer Part Number
DS96-L147-203
Description
SmartV.XX Modem
Manufacturer
CONEXANT [Conexant Systems, Inc]
Datasheet
1.DS96-L147-203.pdf
(94 pages)
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Table 3-15. CX20442 VC Pin Signal Definitions (Continued)
Table 3-13. CX20442 VC DC Electrical Characteristics
102199B
VREF
VC
M_DIG_SPEAKER
M_LINE_OUTM
M_RELAYA
M_RELAYB
M_MIC_BIAS
M_ACT90
M_1BIT_OUT
D_LPBK_BAR
NC
Notes:
1. I/O types*:
Input Voltage
Input Voltage Low
Input Voltage High
Output Voltage Low
Output Voltage High
Input Leakage Current
Output Leakage Current (High
Impedance)
Test Conditions unless otherwise stated: VDD = +3.3 ± 0.3 VDC; TA = 0°C to 70°C; external load = 50 pF
Label
Parameter
Ia
It
Itpd
Itpu
Oa
Ot2
Ot2od
AGND
GND
Analog input
Digital input, TTL-compatible
Digital input, TTL-compatible, internal 75k ± 25k Ω pull-down
Digital input, TTL-compatible, internal 75k ± 25k Ω pull-up
Analog output
Digital output, TTL-compatible, 2 mA, Z INTERNAL = 120 Ω
Digital output, TTL-compatible, 2 mA, open drain, Z INTERNAL = 120 Ω
Analog Ground
Digital Ground
11
12
2
10
24
16
15
29
30
31
7, 8, 32
Pin
CX81801-7x/8x SmartV.XX Modem Data Sheet
Symbol
V OH
V OL
V IN
V IH
V IL
–
–
R
R
O
O
O
O
O
I
O
I
I/O
0.4*VDD
0.8*VDD
REF
REF
Ot2
Oa
Ot
Ot
Oa
Itpu
Ot2
It
I/O Type
-0.30
-0.30
Min.
-10
-10
0
Reference Voltage
Conexant
Not Used
High Voltage Reference. Connect to analog ground through
10 µF (polarized, + terminal to VREF) and 0.1 µF (ceramic) in
parallel. Ensure a very close proximity between these capacitors
and VREF pin.
Low Voltage Reference. Connect to analog ground through
10 µF (polarized, + terminal to VC) and 0.1 µF (ceramic) in
parallel. Ensure a very close proximity between these capacitors
and VC pin.
For handset interface, also connect to handset interface circuit
(VC_HAND).
Not Used. Leave open.
Not Used. Leave open.
Not Used. Leave open.
Not Used. Leave open.
Not Used. Leave open.
Not Used. Leave open.
Not Used. Leave open.
Not Used. Leave open.
Internal No Connect. Leave open.
Typ.
–
–
–
–
–
–
–
0.2 *VDD
VDD+0.3
VDD+0.3
Max.
VDD
0.4
10
10
Signal Name/Description
Units
µA
µA
V
V
V
V
V
Test Conditions
3-33
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