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TSH512

HiFi stereo/mono infrared transmitter

Stereo sub-carrier generator

s

s

s

s

s

s

s

s

Supply voltage:

2.3V to 5.5V

Carriers frequency range:

0.4 to 11 MHz

High versatility: I/O pins for each section

Two FM transmitters for stereo

Sinusoidal carriers for high spectral purity

Micro or line level preamplifiers with ALC

VOX function to save on battery power

Transmitter 2 Standby for mono operation

PACKAGE

DESCRIPTION

The TSH512 is a 0.4 to 11 MHz dual FM transmit-

ter. Access pins to each section give a high versa-

tility and allow several applications: stereo head-

phone, multimedia headset, audio sub-carrier

generator.

The TSH512 integrates in one chip:

Low-noise audio preamplifiers with ALC (Automat-

ic Level Control), frequency modulated oscillators,

and linear output buffers to drive external transis-

tors. The sinusoidal carriers facilitates the filtering

and allows high performance audio transmission.

The VOX (Voice Operated Transmit) circuitry dis-

ables the output buffer when there is no audio to

save battery power.

For MONO applications, the STAND-BY pin en-

ables one transmitter only, reducing the supply

current.

The TSH512 forms a chipset with the dual receiv-

er TSH511.

APPLICATIONS

F

TQFP44

10 x 10 mm

PIN CONNECTION

(top view)

44

43

42

41

40

39

38

37

36

35

34

1

PEA

ALC

VCO

33

32

3

LNA

4

5

6

7

8

LNA

9

10

11

TSH512

VOX

+

-

Monostable

s

s

s

s

s

Infrared HiFi stereo transmitter

Infrared Headsets

Stereo sub-carrier for video transmitters

Voice operated wireless webcams

FM IF transmit systems

+

-

ALC

ORDER CODE

Part Number

TSH512CF

TSH512CFT

Temperature

Range

-40擄C to

+85擄C

-40擄C to

+85擄C

Package

TQFP44

TQFP44

Conditionning

Tray

Tape & reel

Marking

TSH512C

TSH512C

12

13

14

15

16

December 2002

-

+

2

-

-

-

+

TX2

Output

buffer

31

30

29

28

27

26

TX1

+

-

PEA

Output

buffer

25

24

23

VCO

17

18

19

20

21

22

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TSH512C相關(guān)型號PDF文件下載

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