Mitsubishi M64884FP Datasheet
Transistor for VCO,1st IF MIX,2-multiple circuit built-in 500MHz/1GHz Dual PLL Synthesizer
Ver 1.0
Nov 25,1998
ELECTRIC
•
Software is compatible with
SWSWSW
SW
SW
SWSWSW
To TX.VCO
micro computer
LOCAL
DATA
Output
1.DESCRIPTION
The M64884FP is a 2-system 1-chip PLL frequency synthesizer IC designed of Analog cordless telephone for North
America (ISM band) that can directly enter signal up to 500MHz in the TX and up to 1GHz in the RX.
Adoption of high performance Bi-CMOS process enables low
power consumption type 2-modulus prescaler to be built in
TXGND1
the IC to directly signal enter up to 500MHz in the TX and up
to 1GHz in the RX.This IC also contains VCO oscillation-Tr in
the TX and RX,2-multiple circuit for transmission output and
double balance type mixer for the 1st intermediate frequency
(1st IF).
TXGND2
2.FEATURES
•
Low power current Icc=24mA. (@Vcc=3.0V,at TX/RX VCO
and 2-multiple circuit output current=2mA setting)
•
Built-in 2-modulus prescaler.
• input frequency --- TX:350~500MHz,RX:700~1000MHz.
• input sensitivity --- -15 ~ -5dBm.
•
Built-in buffer-Tr for oscillation circuit in the TX and RX.
•
Built-in 2-multiple circuit for transmission output.
•
Built-in double balance type mixer for the 1st IF.
•
Rated current output type charge pump. Output current can
be set with serial data. (100,300,500,700µA)
•
Built-in B-E Colpitts type oscillation circuit for standard oscillation.
M64084AGP.
MITSUBISHI ICs (Cordless Telephone)
M64884FP
1
TXOUT
TXVCC
TXB
TXE
PD1
VCC
XIN
XOUT
XBO
GND
Outline 24SSOP (0.65 milli-pitch)
2
3
4
5
6
7
8
9
10
11
12
APPLICATION
900MHz analog cordless telephone
(ISM band)
24
23
22
21
20
19
18
17
16
15
14
MIXIN
MIXGND
RXVCC
RXB
RXE
RXGND
PD2
RST
SI
CPS
LOCK
MIXOUT13
3.BLOCK DIAGRAM
VCC
8 3
To
2nd.MIX
Input
XIN
XOUT
XBO
SI
CPS
RST
9
10
11
16
15
17
RXVCC
standard
oscillation
circuit
GND
1/16,17
Prescaler
OSC+1/2
Divider
1/32,33
Prescaler
12
TXVCC
1922
RXGND
TXGND2
Programmable
Divider
17
L a t c h
Programmable
Divider
13
L a t c h
Programmable
Divider
17
L a t c h
Shift Resister
Pulse Counter
23
TX.VCO
Circuit
TXGND1 TXB
6
1 4 5 2
1/2
2
4
2
2
Latch
2
Select
MIXGND
RXB RXE
TXE
VCO(TX)
P h a s e
Detector
P h a s e
Detector
VCO(RX)
21
RX.VCO
Circuit
detector
MIXIN
Lock
MIX
TXOUT
x2
2420
TX 2-multiple output
(To TXAMP)
PD1
7
14
18
13
LNA
Circuit
LOCK
PD2
Tank
Load
MIXOUT
LPF
To
LPF
To RX.VCO
1st.IF
MITSUBISHI
1
Transistor for VCO,1st IF MIX,2-multiple circuit built-in 500MHz/1GHz Dual PLL Synthesizer
Ver 1.0
Nov 25,1998
ELECTRIC
2
4. PIN Description
MITSUBISHI ICs (Cordless Telephone)
M64884FP
1 TXGND1
TXVCC3
4 TXB
5
TXE
6
7
8
9
PD1
VCC
XIN
XOUT10
11
XBO
12 GND
14
15
LOCK
CPS
16
17
18
19
20
21
RST
PD2
RXGND
RXE
RXB
RXVCC22
23
MIXGND
24 MIXIN
Pin NameSymbolPin No.
1st ground for transmission system. 0V.Transmission system ground 1
Transmission outputTXOUT2
Transmission circuit base Base pin of the transmission VCO transistor.
Transmission circuit emitter
Transmission system
Charge Pump output
Crystal oscillator input
Ground Ground pin for the PLL system. 0V.
Reception system
Charge Pump Output
Reception circuit emitter
Mixer input Mixer signal input pin.
Output frequency that multiples the oscillation frequency of the transmission
system by 2, and outputs an open emitter.
Power supply pin for transmission VCO circuit. TXVCC = 2.7~3.6V.Transmission system power supply
Emitter pin of the transmission VCO transistor. Set the current of the transmission oscillation circuit by pull-down resistance.
2nd ground for transmission system. 0V.Transmission system ground 2TXGND2
Output the set current according to the difference in phase between Charge
Pump output pins in the PLL1(TX) system.
HiZ with the power supply turned off.
Power supply pin for the PLL system. VCC = 2.7~3.6V. Power supply
Inputs 4 to 25MHz output from the base oscillator to the XIN .
External crystal oscillator is available for oscillation.
Buffer output pin of base oscillation.Buffer output
Extracts IF frequencies.Mixer OutputMIXOUT13
Judgment is made in a system turned on when the other system is turned off.Lock detection output
Operates at the rising edge of the clock pulse of the shift resistor.Clock pulse input
Inputs serial data.Data inputSI
Inputs the reset pulse of 21 pulse counters.Reset pulse input
Output the set current according to the difference in phase between Charge
Pump output pins in the PLL2(RX) system.
HiZ with the power supply turned off.
Ground for reception system. 0V.Reception system ground
Emitter pin of the reception VCO transistor. Set the current of the reception
oscillation circuit by pull-down resistance.
Base pin of the reception VCO transistor.Reception circuit base
Power supply pin for reception VCO circuit. TXVCC = 2.7~3.6V. Reception system power supply
Ground for mixer system. 0V.Mixer system ground
Functions
MITSUBISHI
Transistor for VCO,1st IF MIX,2-multiple circuit built-in 500MHz/1GHz Dual PLL Synthesizer
Ver 1.0
Nov 25,1998
ELECTRIC
MSB
Shift register
Power ON/OFF
Latch selection
Charge
Set
Division ratio for reference (13 bits)
LSB
Charge
Set
Division ratio for local oscillator 1(17 bits)
Division ratio for local oscillator 2(17 bits)
Note 1) At the positive edge of CPS input, SI input status is read into the shift resistor in sequence.
CPS
ALID
ALID
D19
D18
D1
D2
SI
D21
D20
RST
MSB
LSB
VIH = 0.7*VCC ~ 3.6 (V)
Effective data
tSUthtWH
tWL
tSU = th = tWH = tWL > 0.5 µs
tCR = tRH = tRC > 1 µs
SI
CPS
tCR
tRH
tRC
RST
12202162021620
5. Functional Description
(1) Data Entry
Note 2) All data is set at the positive edge of the 21st pulse. After that, CPS is invalid.
Note 3) While RST is set to "H", neither CPS nor SI is received.
(2) Input Signal Timing
MITSUBISHI ICs (Cordless Telephone)
M64884FP
INV-
INV-
(3) Input Voltage
VIL = -0.2 ~ 0.3*VCC (V)
(4) Shift Resister Bit Configuration
DCDD
DADB
Pump 2
Current
DHDGDFDE
Pump 1
Current
123456789101112131415161718192021
2
MITSUBISHI
3
MITSUBISHI ICs (Cordless Telephone)
Ver 1.0
Nov 25,1998
ELECTRIC
M64884FP
Transistor for VCO,1st IF MIX,2-multiple circuit built-in 500MHz/1GHz Dual PLL Synthesizer
Note 4) DD and DC are used to turn on/off the power supply to the PLL system.
Data
DCDD
LL
HL
LH
HH
Note 5) DB and DA are used to select data latch to be updated.
Data
DADB
LL
HL
LH
HH
Note 6) DE/DF and DG/DH are used to set the current of charge pump.
Both two PLLs are on.
Only PLL of local oscillator 1 is on.
Only PLL of local oscillator 2 is on.
Both two PLLs are off.
Testing mode only. Inhibited from use.
Updates data of local oscillator 1.
Updates data of local oscillator 2.
Updates data for comparison frequency.
Description
Description
DE
DG
L
L
H
H
Note 7) Current supplied to the charge pump for local oscillators 1 and 2 can be set independently in systems.
However,when power supply is turned off, the charge pump output is placed in "HiZ" status regardless
of set value.
Note 8) The division ratio of the programmable divider for comparison frequency is given in 13-bit binary code.
For transmission local oscillator N(Fref) = 4 * P However, P = 20 to 8191
For reception local oscillator N(Fref) = 2 * P However, P = 20 to 8191
Note 9) The division ratio of programmable divider for local oscillators 1 and 2 are given in 17-bit binary code.
For transmission local oscillator N(FvcoTX) = 256 to 131071
For reception local oscillator N(FvcoRX) = 1024 to 131071
DF
DH
L
H
L
H
Output current value of charge pump
100µA
300µA
500µA
700µA
MITSUBISHI
4
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