tda6508 NXP Semiconductors, tda6508 Datasheet - Page 9

• Manufacturer Part Number: tda6508
• Description: 3-band Mixer/oscillator And Pll For Terrestrial Tuners
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 1 I
Note
1. X = don’t care.
Table 2 Function of write mode bits used in Table 1
Table 3 Module address selection bits
2005 Mar 25
Address byte
Divider byte 1
Divider byte 2
Control byte
Band switch byte
MA1 and MA0
R/W
N14 to N0
CP
T2, T1 and T0
RSA and RSB
WSB
P0, P1, P2, P3, P4
0
0
1
1
3-band mixer/oscillator and PLL for
terrestrial tuners
MA1
NAME
2
C-bus data format for write mode
BIT
0
1
0
1
MA0
DB1
DB2
ADB
CB
BB
BYTE
module address; see Table 3
read/write mode; 0 = write mode
programmable divider bits: N = N14
charge-pump current control:
test mode; see Table 5
reference divider ratio; see Table 4
Weak Signal Booster control:
port P0 to P4 control:
0 V to 0.1V
0.2V
0.4V
0.9V
1
0
N7
1
X
0: charge-pump current is 20 A
1: charge-pump current is 100 A
0: normal mode - no gain increase: external IF filter used
1: Weak Signal Booster activated: IF filter by-passed
0: corresponding port is off; high impedance state (default)
1: corresponding port is on.
MSB
CC
CC
CC
to 0.3V
to 0.6V
to 1.0V
CC
1
N14
N6
CP
X
CC
CC
CC
or open-circuit
0
N13
N5
T2
X
9
VOLTAGE APPLIED TO PIN AS
0
N12
N4
T1
P4
FUNCTION
2
BITS
14
0
N11
N3
T0
P3
N13
(1)
TDA6508; TDA6508A;
2
TDA6509; TDA6509A
13
MA1
N10
N2
RSA
P2
...
N1
Product specification
MA0
N9
N1
RSB
P1
2
1
N0
R/W = 0
N8
N0
WSB
P0
LSB