SI2457-C-FT Silicon Laboratories Inc, SI2457-C-FT Datasheet - Page 67

• Manufacturer Part Number: SI2457-C-FT
• Description: IC ISOMODEM SYSTEM-SIDE 24TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2457-C-FT

• Package / Case: 24-TSSOP
• Mfg Application Notes: SI2493/57/34/15/04, Appl Note AN93
• Data Format: V.21, V.22, V.23, V.32, V.34, V.90, Bell 103, Bell 212A
• Baud Rates: 56k
• Interface: Parallel, UART
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Operating Frequency: 4.92 MHz
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current: 26 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

10. Pin Descriptions: Si3008
Pin #
1
2
3
4
5
6
7
8
9
Pin Name
VREG
IGND
DCT
C1B
C2B
CID
QE
QB
RX
Isolation Capacitor 1B.
Connects to one side of isolation capacitor C1 and communicates with the Si2457/
34/15.
Isolation Capacitor 2B.
Connects to one side of isolation capacitor C2 and communicates with the Si2457/
34/15.
Voltage regulator.
Connects to an external capacitor to provide bypassing for an internal power supply.
Caller ID.
Caller ID input.
Transistor Emitter.
Connects to the emitter of Q3.
Transistor Base.
Connects to the base of transistor Q3. Used to go on- and off-hook.
DC Termination.
Provides dc termination to the telephone network.
Receive Input.
Serves as the receive side input from the telephone network.
Isolated Ground. (exposed pad)
Connects to ground on the line-side interface.
VREG
C1B
C2B
CID
Preliminary Rev. 0.7
1
3
2
4
Si3008
IGND
9
Description
Si2457/34/15/04-Si3008
8
7
6
5
QE
RX
DCT
QB
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