LE79231FQC Zarlink, LE79231FQC Datasheet - Page 18

• Manufacturer Part Number: LE79231FQC
• Description: SLIC 3-CH 63dB 70mA 5V 32-Pin QFN EP
• Manufacturer: Zarlink

Specifications of LE79231FQC

• Package: 32QFN EP
• Number Of Channels Per Chip: 3
• Polarity Reversal: Yes
• Longitudinal Balanced: 63 dB
• Loop Current: 70(Min) mA
• Minimum Operating Supply Voltage: 4.75 V
• Typical Operating Supply Voltage: 5 V
• Typical Supply Current: 26.9 mA

4.
5.
6.
WAVEFORMS
P1,P2,P3
Le79231 ISLIC device registers are refreshed at 5.33 kHz when used with a Le79Q224x or Le79228 codec.
If the clock or MPI becomes disabled, the LD pins and P1
connection.
Not tested in production. Guaranteed by characterization.
P1,P2,P3
P1,P2,P3
LD
LD
LD
S
Relay Data
Previous
VREF
VREF
VREF
VCC
R
0V
t
SDXSU
tr
SLD
187.5 µs
State Data
Zarlink Semiconductor Inc.
–
t
3 returns to 0 V state, thus protecting the Le79231 ISLIC device and the line
t
SLDPW
SDXD
DETAIL A
18
S
Relay Data
R
t
tf
SDXHD
SLD
New State
Lock Registers
Write State Register
Write Relay Register
Relay driver
Write Relay Register
Data
Write State Register
response
S
R