FM1236 Philips Semiconductors, FM1236 Datasheet - Page 14

• Manufacturer Part Number: FM1236
• Description: Desktop video & FM radio module system M/ N
• Manufacturer: Philips Semiconductors

Philips Components
PLL disabling:
Ratio select bits
P
Notes
1. If the TV function is not required, the tuner can be switched to power-down mode. In this mode the tuner reduces the
2. By this setting the FM radio AFC status can be read from the A/D bits in the status byte.
3. By this setting the RF input level can be read from the A/D bits in the status byte.
1997 Feb 03
TV/FM bandswitching
FM band
Low band
Mid band
High band
TV mode
Power down mode; see note 1
System M, N negative mode
FM radio mode
AFC; see note 2
R
Mono
Mute
ORTS BYTE
OS = 0, for normal operation
OS = 1, for switching the charge pump to the high impedance state.
IF
Desktop video & FM radio module
system M, N
; see note 3
current consumption by up to 100 mA.
RSA
X
0
1
FUNCTION
RSB
0
1
1
50 kHz
31.25 kHz
62.5 kHz
P7
1
1
1
0
P6
0
0
0
0
14
P5
1
1
0
1
P4
STEP SIZE
0
0
1
1
BIT
P3
0
0
0
0
0
1
P2
1
0
0
0
0
0
1
1
1
1
Preliminary specification
P1
0
0
0
0
1
0
FM1236
P0
1
0
1
0
0
0