TDA6404 Datasheet, PDF (4/32 Pages) NXP Semiconductors – 5 V mixer/oscillator-PLL synthesizers for hyperband tuners

Philips Semiconductors
5 V mixer/oscillator-PLL synthesizers for
hyperband tuners
BLOCK DIAGRAM
Product specification
TDA6404; TDA6405;
TDA6405A
handbook, full pagewidth
VHFIN
3 (26)
RFGND
4 (25)
BS
UHFIN1
UHFIN2
1 (28)
2 (27)
16 (13)
XTAL
SCL
SDA
AS
12 (17)
11 (18)
10 (19)
RF INPUT
VHF
IFFIL1 IFFIL2
5 (24) 6 (23)
VHF
MIXER
BSVHF
ELECTRONIC
BAND SWITCH
BSUHF
RF INPUT
UHF
UHF
MIXER
VCC
17 (12)
BSVHF
VHF
OSCILLATOR
IF
AMPLIFIER
BSUHF
UHF
OSCILLATOR
XTAL
OSCILLATOR
4 MHz
REFERENCE
DIVIDER
512, 640, 1024
fREF
DIGITAL
PHASE
COMPARATOR
CHARGE
PUMP
TUNING
AMPLIFIER
(4) 25
(3) 26
(2) 27
(1) 28
VHFOSCIB1
VHFOSCOC1
VHFOSCOC2
VHFOSCIB2
(11) 18
(10) 19
IFOUT1
IFOUT2
(5) 24
(6) 23
(7) 22
(8) 21
(15) 14
(14) 15
UHFOSCIB2
UHFOSCOC2
UHFOSCOC1
UHFOSCIB1
CP
VT
PRESCALER
DIVIDE BY 8
RSA
RSB
15-BIT
PROGRAMMABLE
DIVIDER
fDIV
IN-LOCK
DETECTOR
POWER-ON
RESET
1/2fDIV
FL
15-BIT
FREQUENCY
REGISTER
FL
SCL
SDA
AS
I²C-BUS
TRANSCEIVER
FL fREF 1/2fDIV
T2, T1, T0 CHP
OS
TDA6404
TDA6405
TDA6405A
LOGIC
7-BIT CONTROL
REGISTER
CHP T2 T1 T0 RSA RSB OS
3-BIT BAND SWITCH
REGISTER
VHFL
VHFH
UHF
(9) 20 _GND
5-LEVEL A/D
CONVERTER
GATE
VCC
BS
T2, T1, T0
13 (16)
ADC
7 (22)
8 (21)
9 (20)
PVHFL
PVHFH
PUHF
MGK813
The pin numbers in parenthesis represent the TDA6405 and TDA6405A.
Fig.1 Block diagram.
1999 Jan 13
4