ISL59885_07 Datasheet, PDF (3/13 Pages) Intersil Corporation – Auto-Adjusting Sync Separator for HD and SD Video

ISL59885
Pin Descriptions
PIN NUMBER
PIN NAME
PIN FUNCTION
1
Composite Sync Out Composite sync pulse output; sync pulses start on a falling edge and end on a rising edge.
2
Composite Video In AC coupled composite video input; sync tip must be at the lowest potential (positive picture phase).
3
Vertical Sync Out Vertical sync pulse output; the falling edge of vertical sync is the start of the vertical period.
4
Gnd
Supply ground
5
HD
Low when input horizontal frequency is greater than 20kHz.
6
CSET
(An external capacitor to ground); bypass pin for internal bias generator.
7
Horizontal Output Horizontal output; falling edge active
8
VDD
Positive supply
Typical Performance Curves
V_DD = 3.3 AND 5.0V
V_DD = 3.3 AND 5.0V
k kkkk kkkkk
H_SYNC (Hz)
FIGURE 1. H_SYNC vs V_CSET (R_SET = OPEN)
V_DD = 3.3 AND 5.0V
V_CSET (V)
FIGURE 3. H_SYNC vs V_CSET (R_SET = OPEN)
k kk kk kkkkk
H_SYNC FREQUENCY (Hz)
FIGURE 2. H_SYNC PULSEWIDTH vs H_SYNC FREQUENCY
(R_SET = OPEN)
0.5V/DIV
5V/DIV
5V/DIV
VIN
HSYNC
VSYNC
5V/DIV
CSYNC
100μs/DIV
FIGURE 4. MACROVISION COMPATIBILITY (NTSC)
3
FN7442.6
August 15, 2007