SI3220-GQR Silicon Laboratories Inc, SI3220-GQR Datasheet - Page 104
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SI3220-GQR
Manufacturer Part Number
SI3220-GQR
Description
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI3220-GQR.pdf
(112 pages)
Specifications of SI3220-GQR
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI3220-GQR
Manufacturer:
SILICON
Quantity:
15 000
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Si3220/25 Si3200/02
104
Pin Number(s)
Si3220
epad
46
47
Si3225
epad
46
47
53
SDITHRU
BLKRNG
Symbol
GND
CS
Output
Input/
O
I
I
Description
Serial Data Daisy Chain.
Enables multiple devices to use a single CS for serial port con-
trol. Connect SDITHRU pin from master device to SDI pin of
slave device. An internal pullup resistor holds this pin high dur-
ing idle periods.
Chip Select.
Active low. When inactive, SCLK and SDI are ignored, and
SDO is high impedance. When active, serial port is operational.
Senses ring-trip condition when using centralized ring genera-
tor. Connect to high side of ring sense resistor. Shared by
channels a and b.
Exposed Die Paddle Ground.
Connect to a low-impedance ground plane via top side PCB
pad directly under the part. See Package Outlines: 64-Pin
TQFP for PCB pad dimensions.
Ring Generator Sensing Input.
Rev. 1.3
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