tda9725 NXP Semiconductors, tda9725 Datasheet - Page 23

• Manufacturer Part Number: tda9725
• Description: Y/c Automatic Adjustment Processor Vhs Standard
• Manufacturer: NXP Semiconductors

Philips Semiconductors
LUMINANCE FILTER CHARACTERISTICS
Table 7 Low-pass filter 4.43 MHz; frequency response pin 43 to pin 3 (test mode)
Table 8 Sub-low-pass filter; frequency response from FM demodulator to pin 9
Sensitivity
Table 9 Sensitivity of PB APC (multiplication factor for phase detector sensitivity)
Notes
1. No alternating reference for APC loop.
2. Comb filter is inside the APC loop.
Burst down logic
Table 10 Burst down logic
1996 Oct 14
REC
t
NORM
TRICK
Playback
d
G1
G2
G3
G1
G2
Y/C automatic adjustment processor
(VHS standard)
PROGRAM
SYMBOL
SYMBOL
MODE
frequency response 1
frequency response 2
frequency response 3
group delay 1
frequency response 1
frequency response 2
2
2
SP
PARAMETER
PARAMETER
PAL
NTSC
PAL
SECAM
1
1
(2)
(1)(2)
LP
G(2 MHz)/G(0.2 MHz)
G(3 MHz)/G(0.2 MHz)
G(4.43 MHz)/G(0.2 MHz)
f
G(3 MHz)/G(0.2 MHz)
G(6 MHz)/G(0.2 MHz)
2
2
i
(1)(2)
(1)(2)
= 0.2 MHz
SP
CONDITIONS
CONDITIONS
SYSTEM
23
NTSC/NAP
2
2
SP
LP
EP
(1)(2)
(1)(2)
LP
2
2
(1)(2)
(1)(2)
EP
710
1.0
2.5
4.5
MIN.
MIN.
4
2
(1)
(1)(2)
+0.5
750
SP
1.0
40
2
25
TYP.
TYP.
ON ( 5.0 dB)
OFF
ON ( 4.0 dB)
OFF
OFF
2
2
NTSC4.4
BURST DOWN
(1)(2)
(1)(2)
Product specification
+1.5
+0.5
790
0
30
15
LP
MAX.
MAX.
TDA9725
2
2
dB
dB
dB
ns
dB
dB
(1)(2)
(1)(2)
UNIT
UNIT
EP