SI2457-C-FT Silicon Laboratories Inc, SI2457-C-FT Datasheet - Page 48

• 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

Si2457/34/15/04-Si3008
U53 MOD2
Reset settings = 0x0000
U62 DAAC1
Reset settings = 0x0804
48
15:12
Name
Name
10:3
Type
Type
Bit
Bit
Bit
11
2
1
0
14:0
Bit
15
Reserved Must be set to 0.
Reserved Must be set to 1.
Reserved Must be set to 0.
Reserved Must be set to 0.
D15
D15
REV
R/W
Name
FOH
DL
Reserved Read returns zero.
D14
D14
Name
REV
Fast Off-Hook.
0 = Automatic Calibration Time set to 426 ms.
1 = Automatic Calibration Time set to 106 ms.
Isolation Digital Loopback (see the AT&T commands).
0 = Loopback occurs beyond the DAA interface, out to and including the analog hybrid
circuit.
1 = Enables digital loopback mode across isolation barrier only. Clear after loopback test is
terminated.
D13
D13
V.23 Reversing.
0 = Disable.
1 = Enable.
D12
D12
D11
D11
D10
D10
Preliminary Rev. 0.7
D9
D9
D8
D8
Function
D7
D7
Function
D6
D6
D5
D5
D4
D4
D3
D3
FOH
R/W R/W
D2
D2
D1
DL
D1
D0
D0