MITSUBISHI ICs (TV)
M64897GP
PLL FREQUENCY SYNTHESIZER WITH DC-DC CONVERTER FOR PC
DESCRIPTION
The M64897GP is a semiconductor integrated circuit consisting of
PLL frequency synthesizer for TV/VCR/PC using I
2
C BUS control.
It contains the prescaler with operating up to1.3GHz, 4 band drivers
and DC-DC converter for Tuning voltage.
FEATURES
Built-in DC-DC converter for Tuning voltage
•
4 integrated PNP band drivers
•
(Io=30mA, Vsat=0.2V typ@Vcc1 to 10V)
Built-in prescaler with input amplifier (f max=1.3GHz)
•
PLL lock/unlock status display out put
•
(Built-in pull up resistor)
X’tal 4MHz is used to realize 3 type of tuning steps
•
(Divider ratio 1/512, 1/640, 1/1024)
•
Software compatible with M64894
•
Built-in Power on reset system
•
Small Package (SSOP)
APPLICATION
PC, TV, VCR tuners
PIN CONFIGURATION (TOP VIEW)
PRESCALER
INPUT
GND
SUPPLY
VOLTAGE 1
SUPPLY
VOLTAGE 2
BAND
SWITCHING
OUTPUTS
DC-DCSUPPLY
VOLTAGE
PEACK CURRENT
DETECT
fin
GND
CC1
V
CC2
V
BS4
BS3
BS2
BS1
VDC
Ipk
1
2
3
4
20
19
18
M64897GP
17
165
156
147
138
129
1110
Xin
ADS
SDA
SCL
LD/ftest
ADC
Vin
Vtu
+B
SWE
CRYSTAL
OSCILLATOR
CHIP ADDRESS
INPUT
DATA INPUT
CLOCK INPUT
LD/ftest
OUTPUT
A/D INPUT
FILTER INPUT
TUNING
OUTPUT
SUPPLY
VOLTAGE
SWITCHING
OUTPUT
Outline 20P2E-A
RECOMMENDED OPERATING CONDITION
Supply voltage range..............................................V
Rated supply voltage...........................................................V
CC1
V
CC2
=4.5 to 5.5V
=V
CC1
V
to 10V
CC1
CC2
=V
=5V
CC1
BLOCK DIAGRAM
Xin
SCL
SDA
ADS
20
1
fin
17
18
19
OSC
AMP
1/32,1/33
CC1 VDC Ipk
V
3
f REF DIVIDER SELECTER
1/8
15bit
PROGRAMMABLE DIVIDER
BUS CONTROLLER
ADDRESS SELECT
BAIS / BAND SWITCH DRIVER
LATCH
LATCH
2
15
4
1
1
Power
On Reset
DIV.
PHASE
DETECTOR
LOCK
DETECTOR
5
-
+
CHARGE
PUMP
CP TEST
LATCH
3
5-LEVEL A/D
SRQ
Vreg
OS
109
11
SWE
12
+B
Vtu
13
14
Vin
16
LD/ftest
7654 2 15
8
GND ADCVCC2 BS4 BS3 BS2 BS1
1
°
°
PLL FREQUENCY SYNTHESIZER WITH DC-DC CONVERTER FOR PC
DESCRIPTION OF PIN
Pin No. Symbol Pin name Function
1 f in Prescaler input Input for the VCO frequency.
2 GND GND Ground to 0V.
3V
4V
CC1
CC2
5 BS4
6 BS3
7 BS2
8 BS1
9 VDC
10 Ipk
11 SWE Switching output DC-DC converter oscillator output.
12 +B
13 Vtu Tuning output This supplies the tuning voltage.
14
Vin
15 LD/ftest Lock detect /Test port
16 ADC AD converter input A/D conversion of the input voltage.
17 SCL Clock input Data is read into the shift register when the clock signal falls.
18
SDA Data input
19 ADS
20 X in
Power supply voltage 1
Power supply voltage 2
Band switching
outputs
DC-DC power
supply voltage
Peack current
detect
Power supply
voltage
Filter input
(Charge pump output)
Address switching input
This is connected to
the crystal oscillator
Power supply voltage terminal. 5.0V ± 0.5V
Power supply for band switching, Vcc
1
to 10V
PNP open collector method is used.
When the band switching data is "H", the output is ON.
When it is "L", the output is OFF.
DC-DC power supply voltage terminal. 5.0V ± 0.5V
When potential difference with VDC terminal becomes more than 0.33V by current
limiting detector of DC-DC converter, the listing rises with off.
Power supply voltage for turning voltage.
This is the output terminal for the LPF input and charge pump output. When the phase
of the programmable divider output (f 1/N) is ahead compared to the reference
frequency (f
), the "source" current state becomes active.
REF
If it is behind, the "sink" current becomes active.
If the phases are the same, the high impedance state becomes active.
Lock detector output. When loop of phase locked loop locked it, it rises with "H" level
in "L" level or unlock.
In control byte data input, the programmabule freq. divider output and reference freq.
output is selected by the test mode.
Input for band SW and programmable freq. divider set up.
In lead mode, itoutputs lock detector output and power down flag and a state of 5 le v el
A/D converter.
Chip address sets it up with the input condition of terminal.
4.0MHz crystal oscillator is connected.
MITSUBISHI ICs (TV)
M64897GP
ABSOLUTE MAXIMUM RATINGS
(Ta=-20 ° C to +75 ° C, unless otherwise noted)
Symbol Parameter Conditions Ratings Unit
V
CC1
V
CC2
V
I
V
O
BSOFF
V
I
BSON
BSON
t
d
P
opr
T
stg
T
Supply voltage 1 Pin3 6.0 V
Supply voltage 2 Pin4 10.8 V
Input voltage Not to exceed Vcc
Output voltage f
REF
output 6.0 V
Voltage applied when
the band output is OFF
1
6.0 V
10.8 V
Band output current per 1 band output circuit 40.0 mA
ON the time when the
band output is ON
40mA per 1 band output circuit
3circuits are pn at same time,
10 sec
Power dissipation Ta=75 ° C 255 mW
Operating temperature -20 to +75
Storage temperature -40 to +125
C
C
2
−
−
−
MITSUBISHI ICs (TV)
M64897GP
PLL FREQUENCY SYNTHESIZER WITH DC-DC CONVERTER FOR PC
−
−
−
−
RECOMMENDED OPERATING CONDITIONS
(Ta=-20 ° C to +75 ° C, unless otherwise noted)
Symbol Parameter Conditions Ratings Unit
V
V
f
opr1
f
opr2
CC1
CC2
Supply voltage 1 Pin3 4.5 to 5.5 V
Supply voltage 2 Pin4 V
to 10.0 V
CC1
Operating frequency (1) Crystal oscillation circuit 4.0 V
Operating frequency (2) 80 to 1300 MHz
Normally 1 circuit is on. 2 circuits on at the
I
BDL
Band output current 5 to 8
same time is max. It is prohibited to have
0 to 30 mA
3 or more circuits turned on at the same time.
ELECTRICAL CHARACTERISTICS
(Ta=-20 ° C to +75 ° C, unless otherwise noted, Vcc
Symbol Parameter Test pin Test conditions
V
IH
V
IL
I
IH
I
IL
V
OL
I
LO
V
OH
V
OL
V
BS
olk1
I
V
toH
V
toL
I
cpo
I
cpLK
I
CC1
I
CC2A
CC2B
I
I
CC2C
Input
terminals
SDA
output
Lock
output
Band
SW
Tuning
output
Charge
pump
Supply current 1 3 V
Supply
current 2
“H” input voltage 17 to 18 3.0
“L” input voltage 17 to 18
“H” input current 17 to 18 V
“L” input current 17/18 V
“L” output voltage 18 V
Leak current 18 V
“H” output voltage 16 V
“L” output voltage 16 V
output voltage 5 to 8 V
Leak current 5 to 8
CC1
=5.5V , Vi=4.0V
CC1
=5.5V , Vi=0.4V
CC1
=5.5V, Ic=3mA
CC1
=5.5V , Vo=5.5V
CC1
=5.5V 5.0
CC1
=5.5V - 0.3 0.5 V
CC2
=9V, Io=-30mA 11.6 11.8
V
CC2
=9V, Band SW is OFF
Vo=0V
output voltage “H” 13 +B=31V 30.5
output voltage “L” 13 +B=31V
“H” output current 14 V
Leak current 14 V
4 circuits OFF 4 V
1 circuits ON,
Output open
Output current 30mA 4 V
CC1
=5.0V , Vo=2.5V
CC1
=5.0V , Vo=2.5V
CC1
=5.5V
CC2
=9V
=9V
CC2
4V
CC2
=9V, Io=-30mA
1
=5.0V , Vcc
2
=9.0V)
Limits
Min. Typ. Max.
CC1
V
−
−−
−−
+0.3
1.5 V
10 µ A
-4/-14 -10/-30 µ A
−−
−−
0.4 µ A
10 µ A
−−
−−
-10 µ A
−−
0.2 0.4 V
−±
270 ± 370 µ A
− − ± 50 nA
20 30 mA
−−
0.3 mA
4.0 6.0 mA
34.0 36.0 mA
DC-DC Converter
I
CCdc
V
f
OSC
do
Supply current (action) 9 V
Output voltage 12 V
CC1
=5.5V
CC1
=5.5V 28 31 35 V
1.3 3.0 mA
OSC frequency 11 VCC1=5.5V − 571 − kHz
Vipk Current limit detect voltage 10 VCC1=5.5V − 330 − mV
The typical values are at V
CC1
=5.0V , V
=9.0V , Ta=+25 ° C.
CC2
Unit
V
V
V
V
3