SI2434-C-GT Silicon Laboratories Inc, SI2434-C-GT Datasheet - Page 60
SI2434-C-GT
Manufacturer Part Number
SI2434-C-GT
Description
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI2434-C-GT.pdf
(74 pages)
Specifications of SI2434-C-GT
Main Category
Chipset
Data Rate
32.8125Kbps
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Supplier Unconfirmed
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Si2457/34/15/04
U79 GEN4
Reset settings = 0x0000
60
Name
15:5
Type
Bit
4:0
Bit
LVCS[4:0] Line Voltage Current Sense.
Reserved Read returns zero.
D15
Name
D14
Represents either the line voltage, loop current, or on-hook line monitor.
On-Hook Voltage Monitor (2.75 V/bit ±20%).
00000 = No line connected.
00001 = Minimum line voltage (V
11111 = Maximum line voltage (87 V ± 20%).
The line voltage monitor full scale may be modified by changing R5 as follows:
V
Off-Hook Loop Current Monitor (3 mA/bit).
00000 = No loop current.
00001 = Minimum loop current.
11110 = Maximum loop current.
11111 = Loop current is excessive (overload).
LVCS is backward compatible with Si2456/33/14 ISOmodems. The LVCS value is absolute
and does not reflect loop polarity. See U6C (LVS)[15:8] for 1 V/bit resolution and signed twos
complement output
D13
MAX
= V
D12
Overload > 140 mA in all modes except TBR21
Overload > 54 mA in TBR21 mode
MIN
+ 4.2 (10M + R5 + 1.6k)/(R5 +1.6k)/5
D11
D10
D9
Rev. 1.1
MIN
D8
= 3.0 V ± 0.5 V).
Function
D7
D6
D5
D4
D3
LVCS[4:0]
D2
R
D1
D0
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