tda8374bh NXP Semiconductors, tda8374bh Datasheet - Page 22

• Manufacturer Part Number: tda8374bh
• Description: Tda837x Family I?c-bus Controlled Economy Pal/ntsc And Ntsc Tv-processors
• Manufacturer: NXP Semiconductors

Philips Semiconductors
I
Table 12 Source select
Table 13 Phase 1 ( -1) time constant
Table 14 Crystal indication
Table 15 Forced field frequency TDA8374 and TDA8375
Note
1. When switched to this mode while locked to a 50 Hz signal, the divider will only switch to forced 60 Hz when an
1997 Jul 01
NPUT CONTROL BITS
I
and NTSC TV-processors
2
out-of-sync is detected in the horizontal PLL.
C-bus controlled economy PAL/NTSC
INA
0
0
0
0
1
1
FORF
FOA
XA
0
0
1
1
0
0
1
1
0
0
1
1
INB
0
0
1
1
0
1
FORS
FOB
XB
0
1
0
1
0
1
0
1
0
1
0
1
INC
0
1
0
1
0
0
CVBS3 plus external audio
(DECODER AND AUDIO)
external CVBS plus audio
internal CVBS plus audio
Y/C plus external audio
Y/C plus external audio
SELECTED SIGNALS
Y/C plus internal audio
3.6 MHz and 4.4 MHz crystals (pins 34 and 35)
22
auto (60 Hz when line not synchronized)
auto (50 Hz when line not synchronized)
keep last detected field frequency
one 3.6 MHz crystal (pin 34)
one 4.4 MHz crystal (pin 35)
FIELD FREQUENCY
two 3.6 MHz crystals
slow/fast and gated
slow and gated
60 Hz; note 1
CRYSTAL
MODE
normal
fast
SWITCH OUTPUT
external CVBS
external CVBS
TDA837x family
Y/C (Y plus C)
internal CVBS
internal CVBS
Preliminary specification
CVBS3