IA3223-C-FU Silicon Laboratories Inc, IA3223-C-FU Datasheet - Page 19

• Manufacturer Part Number: IA3223-C-FU
• Description: IC EZ DAA SYST SIDE WORLD 16QSOP
• Manufacturer: Silicon Laboratories Inc
• Series: EZ DAA™r

Specifications of IA3223-C-FU

• Function: Data Access Arrangement (DAA)
• Interface: Serial
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 7.9mA
• Power (watts): 2W
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Includes: "911" Detection, Line-In-Use Detection, Parallel Pick-Up Detection, Ring Detection
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

REGISTERS
Register Map
Note: REVID is a read-only bit, hardwired to zero.
Control Register
Note: Refer to the section on line monitoring for a description of the Line-Status pin.
Line-Side Programming Registers
Note: This mode is not allowed in 600 Ω + 1µF or 900 Ω + 1µF impedance mode.
Note: This mode is not allowed with low or lowest transmit voltage headroom.
LP1 Setting: 0, current sensor enabled; 1, current sensor disabled (recommended when current sensor is not required)
The Line Side is programmed when any of the following conditions is fulfilled: (1) after going from on-hook to off-hook;
(2) when the Line Side LSB programming register is updated by the user or (3) after recovering from a loop-current
interruption (line drop).
LP5 LP4 Setting
LP3 LP2 LP0 Setting
Control bit
OFH
LSR
SGAIN
PWD
0
0
1
1
0
0
0
0
1
1
1
1
A2
0
0
0
0
1
1
1
0
1
0
1
0
0
1
1
0
0
1
1
A1
0
0
1
1
0
0
1
High transmit voltage headroom and DC voltage drop (reset state)
Normal transmit voltage headroom and DC voltage drop
Low transmit voltage headroom and DC voltage drop
Lowest transmit voltage headroom and DC voltage drop
0
1
0
1
0
1
0
1
Definition
Off-hook command
Line Status Ring
Select gain
Power down
A0
600 Ω or 600 Ω + 2.16 µF
600 Ω + 1 µF
900 Ω
900 Ω + 1 µF
ES 203 021, Australia or China complex impedance
New Zealand complex impedance
TBR21 complex impedance with current limit
Reserved
X
0
1
0
1
0
1
Register
Control
Line Side programming MSB
Line Side programming LSB
Thresholds
Line status (read only)
Dividers
Reserved
(Note)
(Note)
Function when low
On hook
Line-Status pin reflects the state
of the LACT status bit (inverted).
Low-gain Caller ID
Normal transmit gain
Normal operation
RNG/PPU
Reserved
Reserved
LTH1
(Note)
OFH
LP5
LP1
D3
(Note)
IA3222A
Function when high
Off hook, ORed with OfHk pin
Line-Status pin reflects the state of
the RNG/PPU status bit (inverted).
High-gain Caller ID
Additional 6 dB of transmitter gain
Device powered down
Yes
Reserved
LIU/LD
LTH0
LSR
LP4
LP0
D2
F2
IA3222B
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Reserved
Reserved
(IA3222B only)
Cx required?
SGAIN
RTH1
LACT
LP3
D1
F1
Yes
Yes
Yes
Reserved
REVID
RTH0
PWD
(IA3222B only)
Cx1 required?
LP2
D0
LP
Reset state
F0
IA3222/IA3223
High
Low
Low
Low
Yes
Yes
Yes
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