ia3222 integration, ia3222 Datasheet - Page 8

• Manufacturer Part Number: ia3222
• Description: Ia3222/ia3223 Ez Daa? Chipset With Analog Interface
• Manufacturer: integration

IA3223 System Side Pin Definitions
Note: Refer to the section on line monitoring for a description of the Line-Status pin.
Pin Number
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
Pin Name
RNG/PPU
LineStat
LIU/LD
ExtClk
RX
SCLK
AC
OfHk
C
C
D
CS#
TX
ICG
ICR
V
ICT
V
D
LP
EXT2
EXT1
OUT
DD
SS
IN
OUT
REF
IN
Pin Type
DO, PU
DI, PD
DI, PD
AIO
AIO
AIO
DO
AO
DO
DO
DO
AO
DI
DI
DI
AI
AI
AI
S
S
IA3223A System Side (QSOP-20)
RNG/PPU
LIU/LDN
LineStat
RX
ExtClk
SCLK
D
CS #
TX
Pin Function
Line Status open-drain output [See note.]
Serial interface clock
Serial interface chip select, active low with weak pull-down
Serial interface data in
Serial interface data out
DAA transmit input
DAA receive output
Optional external clock; this pin may be left open.
Line polarity (on hook and off hook)
Off hook, active high, ORed with internal OFH control bit
External capacitor #2 connection
External capacitor #1 connection
DAA optional DC offset; this pin may be left open.
Positive power supply
Line-Side IsoBridge interface for receiver path
System ground
D
OUT
OUT
Ring signal (on hook) or parallel pickup (off hook)
Line in use or disconnect (on hook) or line drop (off hook)
Line-Side IsoBridge interface reference ground
Line-Side IsoBridge interface for transmitter path
IN
IN
10
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
ICT
V
ICR
V
ICG
AC
C
C
OfHk
LP
SS
DD
EXT 1
EXT 2
REF
IA3222/IA3223
8