ISL6422 INTERSIL [Intersil Corporation], ISL6422 Datasheet - Page 8

• Manufacturer Part Number: ISL6422
• Description: Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs
• Manufacturer: INTERSIL [Intersil Corporation]

Tone Waveform
VOUT1/2
NOTES:
Typical Performance Curves
NOTE: With both channels in simultaneous operation at rated output.
\
MSEL1/2
10. The tone rise and fall times are not shown due to resolution of graphics. It is 10µs typ for 22kHz.
11. The EXTM1 and EXTM2 pins have input thresholds of V
EXTM1/2
9. The logic presented to the signal pins TXT1 and TXT2 changes the decoder threshold during tone Transmit and Receive. TTH1 and TTH2 allow
ENT1/2
FIGURE 2. OUTPUT CURRENT DERATING 38 LD HTSSOP:
threshold control through the I
I
PIN
PIN
I
2
0.820
0.810
0.800
0.790
0.780
2
C
C
0
Internal Tone
Tr = 10µs typ
I
OUT
22kHz
_max vs TAMB
20
22kHz
8
2
TAMB (°C)
C provided that TXT1 and TXT2 = 0.
40
Internal Tone
Tr = 10µs typ
60
22kHz
FIGURE 1. TONE WAVEFORM
IL(max)
80
Returns to nominal V
after the last EXTM rising edge
T > 55µs
ISL6422
22kHz
= 0.8V and V
IH(min)
FIGURE 3. OUTPUT CURRENT DERATING 40 LD 6x6 QFN:
0.810
0.760
0.710
0.660
OUT
= 1.7V
22kHz
0
~1 period
I
OUT
Tr = 10µs typ
Internal Tone
_max vs TAMB
22kHz
20
TAMB (°C)
40
60
April 10, 2007
FN9190.1
80