Mitsubishi M64821FP Datasheet

MITSUBISHI ICs (COMMUNICATION)

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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.

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)

APPLICATION

Digital cordless phone (PHS)

PIN CONFIGURATION (TOP VIEW)

Outline

48P6D

BLOCK DIAGRAM

Vcc(MOD)

GND(MOD)

GND(SUB)

GAIN CONT

from BBIC

BPF

to RFIC

TX OUT

5

48

38

47

45

to 1stMIX

from BBIC

I signal input

IB signal input

12 3

Ø

Up

Conv.

4446

GND(UPCON)

VCO1

Q signal input

QB signal input

4

Vcc(UPCON)

LPF

to CINpin

GND(CP)

27 26 25

Prescaler

29

Vcc(Prescaler)

from VCO1

CP1 Charge pump output

CP1

PLL1

(1st Local)

CIN

GND(Prescaler)

Control signals of
PLL

LOCK Lock Det. output

Vcc(CP)

18

21 20

Lock
Det

300KHz

fREF1

OSC

242830

XOUT

X'tal

from BBIC

SI Serial Data

De­coder

XIN

CPS Clock

LE Load enable

19

fREF2

2223

XBO

to BBIC

CP2 Charge pump output

11

CP2

(2nd Local)

100KHz

12

GND(PLL)

L,C
Osc. Cir.

GND(VCO)

E

6

78

2nd Local

VCO

PLL2

10

LPF

B

Vdd(PLL)

Vcc(VCO)

9

1/2

2nd
MIX

40

GND(MIX)

39

MIX2IN

to BBIC

(Demod.)

LIMOUT
32 33

RSSI

42

Vcc(MIX)

Matching
Cir.

to BBIC

RSSI

BPF

CTL1(MainPLL)

17

CTL2(LocalPLL)

16

CTL3(MOD&Up-Conv.)

15

CTL4(LIM&2ndMIX)

14

CTL5(X'tal osc)

13

Vcc(LIM)

34

GND(LIM)

31

DECOUPLE

36

LIM IN

35

MIX2OUT

37
41

GND
GND

43

1stIF

ON/OFFControl

from BBIC

BPF

MITSUBISHI
ELECTRIC

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