M64821 データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M64821

1 CHIP SYNTHESIZER & MODULATOR FOR PHS

MITSUBISHI ELECTRIC  

MITSUBISHI ICs (COMMUNICATION)

M64821FP

1 CHIP SYNTHESIZER & MODULATOR FOR PHS

DESCRIPTION

The M64821FP is a semiconductor consisting of

PLL and Modulator.

Using Bi-CMOS technology, it contains dual PLL

(1.8GHz, 550MHz), a mixer for 2nd IF, transistor

for VCO , modulator and Up-convertor on chip.

PIN CONFIGURATION (TOP VIEW)

FEATURES

• Built-in 2nd mixer and RSSI

• Vcc=2.7 to 3.6V

• Icc= TYP.41mA (TX.), TYP.23mA (RX.)

• Built-in high accuracy phase shifter (CR type)

• Large Output (-13dBm type)

• Attenuator for Gain Control

• Gain characteristics with temperature dependent

• Built-in transistor and Buffer for 2nd Local VCO

• Built-in Buffer for 1.6GHz VCO

• Small Package (48pin QFP, lead pitch 0.5mm)

Outline 48P6D

APPLICATION

Digital cordless phone (PHS)

BLOCK DIAGRAM

to 1stMIX

VCO1 LPF

from BBIC

Control signals of

PLL(from BBIC)

L,C

Osc. Cir.

12 34

Vcc(MOD) 5

Ø

GND(MOD) 48

GND(SUB) 38

GAIN CONT

47

BPF

TX OUT

45

to RFIC

Up

Conv.

46 44

27 26 25 18 21 20 19 11 6 7 8 9

32

33

ON/OFFControl

(from BBIC)

17 CTL1(MainPLL)

Lock

CP1 Det

De-

coder

2nd Local

CP2

VCO

16 CTL2(LocalPLL)

15 CTL3(MOD&Up-Conv.)

14 CTL4(LIM&2ndMIX)

PLL1

(1st Local)

PLL2

(2nd Local)

300KHz

100KHz

1/2

Prescaler

fREF1

fREF2

13 CTL5(X'tal osc)

RSSI

34 Vcc(LIM)

31 GND(LIM)

DECOUPLE

36

LIM IN

35

OSC

2nd

MIX

29 30 28

24 23

22

12

10

40 39 42

MIX2OUT

37

41 GND

43 GND

X'tal

to BBIC

Matching

Cir.

BPF

1stIF

MITSUBISHI

ELECTRIC

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