MGCT04 데이터 시트보기 (PDF) - Zarlink Semiconductor Inc

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MGCT04

Transmit Circuit for TDMA/AMPS and CDMA/AMPS

Zarlink Semiconductor Inc 

MGCT04 Preliminary Information

1900MHz

power amplifier

1900MHz

diplexer

1900MHz

SAW filter

1900MHz

matching

network

CONTROL

MICROPROCESSOR

1GHz LO

Vcc

2GHz LO

AGC

900MHz

diplexer

900MHz

power amplifier

900MHz

matching

network

900MHz

SAW filter

External

VHF oscillator

Oscillator

control

VHF SYNTHESISER

Oscillator

out

Oscillator

bias

28

1

22

21

MGCT04

7

15

8

14

MIXED SIGNAL

INTERFACE

CIRCUIT

Vee

Figure 4 - Typical application circuit

VCC

50Ω SAW

FILTER

C3 C1 L1

1.2p 1.2p 15n

L2

15n

PIN 27

L4

L3

L5

5.6n 3.9n

5.6n

C4

1.2p

C2

1.2p

PIN 26

NOTE

L1 and L2 are required to provide a DC feed to the output pins

and do not form part of the matching network

Figure 5 - Typical 1900MHz output matching

network

VCC

50Ω SAW

FILTER

C3 C1 L1

1.5p 100p 68n

L2

68n

PIN 3

L4

L3

L5

22n

22n

22n

C4

1.5p

C2

100p

PIN 2

NOTE

L1 and L2 are required to provide a DC feed to the output pins

and do not form part of the matching network

Figure 6 - Typical 900MHz output matching

network

8

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