tda6405ts NXP Semiconductors, tda6405ts Datasheet - Page 7

• Manufacturer Part Number: tda6405ts
• Description: 5 V Mixer/oscillator-pll Synthesizers For Hyperband Tuners
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 1 I
Table 2 I
I
The module address contains programmable address bits (MA1 and MA0) which offer the possibility of having several
synthesizers (up to 4) in one system by applying a specific voltage on the AS input. The relationship between MA1 and
MA0 and the input voltage applied to the AS input is given in Table 4.
Table 3 Description of symbols used in Tables 1 and 2
1999 Jan 13
2
Address byte
Divider byte 1
Divider byte 2
Control byte
Band-switch byte
Address byte
Divider byte 1
Divider byte 2
Control byte
Band-switch byte
A
MA1 and MA0
N14 to N0
CHP
T2, T1 and T0
RSA and RSB
OS
UHF, VHFH and VHFL
X
C-bus address selection
5 V mixer/oscillator-PLL synthesizers for
hyperband tuners
NAME
NAME
SYMBOL
2
2
C-bus mode, write data format for the TDA6404 and TDA6405
C-bus mode, write data format for the TDA6405A
BYTE
BYTE
ADB
ADB
DB1
DB2
DB1
DB2
CB
BB
CB
BB
acknowledge
programmable address bits (see Table 4)
programmable divider bits; N = N14
charge pump current bit:
test bits (see Table 5)
reference divider ratio select bits (see Table 6)
tuning amplifier control bit:
PNP ports control bits:
don’t care bit: may be a logic 0 or a logic 1
MSB
MSB
CHP = 0; I
CHP = 1; I
OS = 0; normal operation; tuning voltage is ‘ON’
OS = 1; tuning voltage is ‘OFF’ (high-impedance)
bit = 0; buffer n is ‘OFF’ (default)
bit = 1; buffer n is ‘ON’
N7
N7
X
X
1
0
1
1
0
1
CHP
CHP
N14
N14
N6
N6
CP
CP
X
X
1
1
= 60 A
= 280 A (default)
N13
N13
N5
N5
T2
T2
X
X
0
0
7
N12
N12
N4
N4
T1
T1
X
X
0
0
DESCRIPTION
BITS
BITS
2
14
UHF
N11
N11
+ N13
N3
N3
T0
T0
X
0
0
2
MA1
RSA
UHF
MA1
RSA
N10
N10
13
N2
N2
X
TDA6404; TDA6405;
+ ... + N1
VHFH
VHFH
MA0
RSB
MA0
RSB
N9
N1
N9
N1
2
Product specification
1
+ N0
TDA6405A
R/W = 0
R/W = 0
VHFL
VHFL
LSB
LSB
OS
OS
N8
N0
N8
N0
ACK
ACK
A
A
A
A
A
A
A
A
A
A