TDA6405A PHILIPS [NXP Semiconductors], TDA6405A Datasheet - Page 4

• Manufacturer Part Number: TDA6405A
• Description: 5 V mixer/oscillator-PLL synthesizers for hyperband tuners
• Manufacturer: PHILIPS [NXP Semiconductors]

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