LNBH24 STMicroelectronics, LNBH24 Datasheet - Page 20

• Manufacturer Part Number: LNBH24
• Description: Dual LNB supply and control IC with step-up and I2C interface
• Manufacturer: STMicroelectronics

Table 8.
1. External signal frequency range in which the EXTM function is guaranteed.
2. Frequency range in which the DETIN function is guaranteed. The V
Table 9.
20/30
Symbol
Symbol
Δ
F
F
V
Z
T
V
V
T
V
capacitor. See typical application circuit in
MAX
F
I
I
DETIN
DETIN
DETIN
V
SHDN
I
V
OBK
IN
V
OL
I
IH
SHDN
IL
OZ
SW
IH
OL
IH
IL
LOW Level input voltage
HIGH Level input voltage
Input current
Low level output voltage
Maximum clock frequency
DC-DC converter switching
frequency
Tone detector frequency
capture range
Tone detector input amplitude Sine wave signal, 22 kHz
Tone detector input
impedance
DSQOUT pin logic LOW
DSQOUT pin leakage current DETIN Tone absent, V
DSQIN,TTX,13/18, EXTM pin
logic Low
DSQIN,TTX,13/18, EXTM pin
logic High
DSQIN,TTX,13/18, EXTM pin
input current
Output backward current
Thermal shut-down threshold
Thermal shut-down
hysteresis
Electrical characteristics of sections A/B (continued)
T
I²C electrical characteristics
J
from 0 to 85 °C, V
Parameter
Parameter
I
= 12 V.
SDA, SCL, V
SDA, SCL
SDA, SCL
SDA (open drain), I
SCL
Figure
0.4V
DETIN Tone present, I
V
EN=0, V
IH
=5V
4).
PP
Test conditions
sine wave
I
OBK
= 0.4 to 4.5 V
Test conditions
=21V
OL
= 6 mA
(2)
PP
level is intended on the LNBOUT (before the C12A/B
OL
OH
=2mA
=6V
Min.
Min.
400
-10
0.3
19
2
2
Typ.
Typ.
220
150
150
0.3
22
15
15
-6
Max.
Max.
0.8
0.6
10
1.5
0.5
0.8
-15
25
10
Unit
Unit
kHz
kHz
V
kHz
mA
kΩ
µA
µA
µA
°C
°C
V
V
V
V
V
V
PP