SI2107_06 Datasheet, PDF (7/94 Pages) Silicon Laboratories – SATELLITE RECEIVER FOR DVB-S/DSS WITH QUICKLOCK AND QUICKSCAN

Si2107/08/09/10
Table 6. LNB Supply Characteristics (Si2108/10 Only)
Parameter
Symbol Test Condition Min
Supply Voltage
V_{LNB_IN}
8
Converter Switch Frequency
237
Output HIGH voltage
VHIGH = 1101 17.75
VHIGH = 1000 17.0
Output LOW voltage
VLOW = 1101 12.75
VLOW = 1100 12.5
Low to High Transition Time
13 to 18 V
—
High to Low Transition Time
18 to 13 V
—
Line Regulation
Load Regulation
Load Capacitance Tolerance
V_CC = 8 to
—
13.2 V
I_o = 500 mA
I_o = 50 to
—
500 mA
V_CC = 12 V
DiSEqC 1.x
—
DiSEqC 2.x
—
Output current limiting
ILIM = 00
400
ILIM = 01
500
Maximum LNB Supply Current
IMAX = 01
1.4
Tone Frequency
Tone Amplitude
f_tone
20
500
Tone Duty Cycle
40
Tone Rise and Fall Time
3
Tone Detector Frequency Capture
17.6
Range
Tone Detector Input Amplitude
200
Note: Specifications based on recommended schematics in Figure 8 and Figure 9.
Typ
12
264
18.625
18.0
13.375
13.25
—
—
—
—
—
—
—
—
1.6
22
650
50
6
—
—
Max
13.2
290
19.5
19.0
14.0
14.0
1
1
200
200
0.75
0.25
550
650
1.92
24
800
60
10
26.4
1000
Unit
V
kHz
V
V
V
V
ms
ms
∆mV
∆mV
µF
µF
mA
mA
A
kHz
mV
%
µs
kHz
mV_pp
Preliminary Rev. 0.81
7