SI2493-C-GT Silicon Laboratories Inc, SI2493-C-GT Datasheet - Page 161
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SI2493-C-GT
Manufacturer Part Number
SI2493-C-GT
Description
IC ISOMODEM SYSTEM-SIDE 24TSSOP
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI2493-C-FS.pdf
(230 pages)
Specifications of SI2493-C-GT
Mfg Application Notes
SI2493/57/34/15/04, Appl Note AN93
Data Format
V.21, V.22, V.23, V.29, V.32, V.34, V.90, V.92, Bell 103, Bell 212A
Baud Rates
56k
Interface
Parallel
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
24-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Connect the prototype ground to the EVB ground
Lift prototype and EVB C1 and C2 to decouple the line side from the DSP side. Do same on evaluation board.
Connect prototype system C1 and C2 to the Si3018 pad of EVB C1 and C2
Connect the phone line to the RJ11 jack on the EVB
Run the prototype system software to attempt a modem connection
Controller
Host
~2.3 V
~1.0 V
0.5 V
0.9 V
0 V
0 V
0 V
0 V
Voltages measured with respect to IGND (Si3018 pin 15)
EVB
QE
RX
IB
C1B
C2B
DCT
RNG1
VREG
Transceiver
RS232
On-Hook
UART
Host
Figure 33. Verify Prototype Si3018/10 Failure
VREG2
Figure 34. Si3018/10 Typical Voltages
RNG2
DCT2
DCT3
IGND
QE2
QB
S2
Si24xx
Si24xx
0 V
0 V
0 V
0 V
0 V
0 V
~1.0 V
Rev. 0.9
C1
C1
C2
C2
1.6 V
3.4 V
2.5 V
0.5 V
0.9 V
2.3 V
1.0 V
0 V
Si3018
Si3018
RX
RNG1
QE
DCT
FB
CIB
C2B
VREG
Prototype System
Off-Hook
VREG2
RNG2
Discretes
Discretes
DCT2
DCT3
IGND
QE2
QB
SC
1.6 V
1.8 V
2.2 V
0 V
2.8 V
2.1 V
0 V
0.9 V
AN93
To
Phone
Line
161
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