TDA6404 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TDA6404

5 V mixer/oscillator-PLL synthesizers for hyperband tuners

Philips Electronics 

Philips Semiconductors

5 V mixer/oscillator-PLL synthesizers for

hyperband tuners

Product specification

TDA6404; TDA6405;

TDA6405A

handbook, halfpage

UHFIN1 1

28 VHFOSCIB2

UHFIN2 2

27 VHFOSCOC2

VHFIN 3

26 VHFOSCOC1

RFGND 4

25 VHFOSCIB1

IFFIL1 5

24 UHFOSCIB2

IFFIL2 6

23 UHFOSCOC2

PVHFL 7

PVHFH 8

22 UHFOSCOC1

TDA6404

21 UHFOSCIB1

PUHF 9

20 GND

AS 10

19 IFOUT2

SDA 11

18 IFOUT1

SCL 12

ADC 13

17 VCC

16 XTAL

CP 14

15 VT

MGK830

Fig.2 Pin configuration for TDA6404.

handbook, halfpage

VHFOSCIB2 1

28 UHFIN1

VHFOSCOC2 2

27 UHFIN2

VHFOSCOC1 3

26 VHFIN

VHFOSCIB1 4

25 RFGND

UHFOSCIB2 5

24 IFFIL1

UHFOSCOC2 6

23 IFFIL2

UHFOSCOC1 7 TDA6405 22 PVHFL

UHFOSCIB1 8 TDA6405A 21 PVHFH

GND 9

20 PUHF

IFOUT2 10

19 AS

IFOUT1 11

18 SDA

VCC 12

XTAL 13

17 SCL

16 ADC

VT 14

15 CP

MGK831

Fig.3 Pin configuration for TDA6405(A)

FUNCTIONAL DESCRIPTION

The devices are controlled via the I2C-bus.

For programming, there is one module address (7 bits)

and the R/W bit for selecting the read or write mode.

Write mode

Data bytes can be sent to the devices after the address

transmission (first byte) by setting the R/W bit to logic 0.

Four data bytes are needed to fully program the devices.

The I2C-bus transceiver has an auto-increment facility

which permits the programming of the devices within one

single transmission (address + 4 data bytes).

The devices can also be partially programmed, providing

that the first data byte following the address is divider

byte 1 (DB1) or control byte (CB). The bits in the data

bytes are defined in Tables 1 and 2.

The first bit of the data byte transmitted indicates whether

frequency data (first bit = 0) or control and band switch

data (first bit = 1) will follow. Until an I2C-bus STOP

condition is sent by the controller, additional data bytes

can be entered without the need to re-address the devices.

The frequency register is loaded after the 8th clock pulse

of the second divider byte (DB2). The control register is

loaded after the 8th clock pulse of the CB. The band switch

register is loaded after the 8th clock pulse of the band

switch byte (BB).

1999 Jan 13

6

Share Link: