M64898GP Datasheet, PDF (1/8 Pages) Mitsubishi Electric Semiconductor – PLL FREQUENCY SYNTHESIZER WITH DC-DC CONVERTER FOR PC

MITSUBISHI ICs (TV)
M64898GP
PLL FREQUENCY SYNTHESIZER WITH DC-DC CONVERTER FOR PC
DESCRIPTION
The M64898GP is a semiconductor integrated circuit consisting of
PLL frequency synthesizer for TV/VCR /PC.
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 (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 M64892/M64893
• Automatick switching of tuning step according to the
number of data bits (62.5kHz at 18bits , 32.25kHz at 19bits)
• 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
fin 1
GND 2
VCC1 3
VCC2 4
BS4 5
BAND
SWITCHING
OUTPUTS
BS3 6
BS2 7
BS1 8
DC-DCSUPPLY
VOLTAGE
VDC
9
PEACK CURRENT
DETECT
lpk
10
20 Xin
19 ENA
CRYSTAL
OSCILLATOR
ENABLE INPUT
18 DATA DATA INPUT
17 CLK CLOCK INPUT
16
LD/ftest
LD/ftest
OUTPUT
15
CONT
fREF
SWITCHING
14 Vin FILTER INPUT
13 Vtu
12 +B
11 SWE
TUNING
OUTPUT
SUPPLY
VOLTAGE
SWITCHING
OUTPUT
Outline 20P2E-A
RECOMMENDED OPERATING CONDITION
Supply voltage range..............................................VCC1=4.5 to 5.5V
VCC2=VCC1 to 10V
Rated supply voltage...........................................................VCC1=5V
VCC2=VCC1
BLOCK DIAGRAM
VCC1
CNT
3
15
Xin 20
OSC
f REF DIVIDER
SELECTER
DIV.
fin 1
AMP
1/8
2
LATCH
15
LATCH
VDC
9
SQ
R
-
+
Vreg
CLK 17
DATA 18
ENA 19
1/32,1/33
15bit
PROGRAMMABLE DIVIDER
18/19-bit SHIFT REGISTER
CONTROL
PHASE
DETECTOR
LOCK
DETECTOR
5
CHARGE
PUMP
CP
TEST
LATCH
BAIS / BAND SWITCH DRIVER
4
5
6
7
8
VCC2
BS4
BS3
BS2
BS1
4
Power
On Reset
2
GND
lpk
10
11 SWE
12 +B
13 Vtu
OS
14 Vin
16 LD/ftest
1