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PDF M64895GP Data sheet ( Hoja de datos )
| Número de pieza | M64895GP | |
| Descripción | I2C BUS FREQUENCY SYNTHESIZER FOR TV/VCR | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
MITSUBISHI ICS (TV)
M64895FP/GP
I2C BUS FREQUENCY SYNTHESIZER FOR TV/VCR
DESCRIPTION
The M64895 is a semiconductor integrated circuit consisting of PLL
frequency synthesizer for TV/VCR using I2C BUS control. It
contains the prescaler with operating up to1.3GHz, 4 band drivers
and tuning Amplifier for direct tuning. Built-in 4 band drivers.
FEATURES
• 4 integrated PNP band drivers
(Io=40mA,Vsat=0.2V typ@Vcc1 to 13.2V)
• Built-in high-withstanding voltage tuning Amplifier
• Low power dissipation (Icc=20mA, Vcc=5V)
• Built-in prescaler with input amplifier (Fmax=1.3GHz)
• PLL lock/unlock status display out put
• (Built-in pull up resistor )
• I2C bus control (write mode only)
• X’tal 4MHz is used to realize 3 type of tuning steps
(Division ratio 1/512, 1/640, 1/1024)
• Programmable chip address
• Small package (16Pin SOP/SSOP)
APPLICATION
TV, VCR tuners
PIN CONFIGURATION (TOP VIEW)
PRESCALER
INPUT
GND
SUPPLY
VOLTAGE 1
SUPPLY
VOLTAGE 2
BAND
SWITCHING
OUTPUTS
fin 1
GND 2
VCC1 3
VCC2 4
BS4 5
BS3 6
BS2 7
BS1 8
16 Xin
15 ADS
14 SDA
CRYSTAL
OSCILLATOR
CHIP ADDRESS
INPUT
DATAINPUT
13 SCL CLOCK INPUT
12
LD/ftest
LD/ftest
OUTPUT
11 VCC3
SUPPLY
VOLTAGE 3
10 Vtu
TUNING
OUTPUT
9 Vin FILTER INPUT
Outline 16P2S-A/16P2Z-A
RECOMMENDED OPERATING CONDITION
Supply voltage range..............................................VCC1=4.5 to 5.5V
VCC2=VCC1 to 13.2V
VCC3=28 to 35V
Rated supply voltage...........................................................VCC1=5V
VCC2=12V
VCC3=33V
BLOCK DIAGRAM
X in
ADS
SDA
SCL
LOCK
VCC3
Vtu
16 15 14 13 12 11 10
Vin
9
OSC
DIV
2
1/32,1/33
1/8
AMP
I2C BUS RECIEVER
MAIN COUNTER
10
SWALLOW COUNTER
5
P.O
RESET
BIAS
4
LOCK
DETECTOR
AMP
PHASE
DETECTOR
CHARGE
PUMP
BAND DRIVER
12345678
f in
GND
VCC1
VCC2
BS4
BS3
BS2
BS1
1
1 page  
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
MITSUBISHI ICS (TV)
M64895FP/GP
I2C BUS FREQUENCY SYNTHESIZER FOR TV/VCR
TEST MODE DATA SET UP METHOD
Test Mode Bit Set Up
X : Random, 0 or 1. normal "0"
MA1 ,MA0 : Programmabule Address Bit
Address input voltage
0 to 0.1∗VCC1
Always valid
0.4∗VCC1 to 0.6*VCC1
0.9∗VCC1 to VCC1
MA1
0
0
1
1
MA0
0
1
0
1
N14 to N0 : How to set dividing ratio of the programable the divider
Dividing ratio=N14(214=16384)+ ⋅⋅⋅ +N0(20=1)
Therefore, the range of division N is 1,024 to 32,768
Example) fvco=fREF×8×N
=3.90625×8×N
=31.25×N (kHz)
CP: Setting up the charge pump current of the phase
comparator
CP Charge pump current
Mode
0 70µA
Test
1
270µA
Normal
TIMING DIAGRAM
START condition
T2,T1,T0 : Setting up for the test mode
T2 T1 T0
00X
01X
110
111
100
101
Charge pump
Normal operation
High impedance
Sink
Source
High impedance
High impedance
Pin 12 condition
Mode
Lock output
Normal operation
Lock output Test mode
Lock output Test mode
Lock output Test mode
fREF output
Test mode
f1/N output
Test mode
RSa, RSb : Set up for the reference frequency division ratio
RSa RSb
11
01
X0
Division ratio
1/512
1/1024
1/640
OS : Set up the tuning amplifier
OS Tuning voltage output
0 ON
1 OFF
Mode
Normal
Test
Power on reset operation (Initial state the power is turned ON)
BS4 to BS1
: OFF
Charge pump
: High impedance
Tuning amplifier
: OFF
Charge pump current : 270µA
Frequency division ratio : 1/1024
Lock detector
: High
SDA
tBUF
tLOW tr
tf
tHDSTA
SCL
STOP condition
tHDSTA
tHDDAT
tHIGH
tSUDAT
tSUSTA
START condition
CRYSTAL OSCILLATOR CONNECTION DIAGRAM
16
18pF
4MHz
Crystal oscillator characteristics
Actual resistance : less then 300Ω
Load capacitance : 20pF
tSUSTO
STOP condition
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet M64895GP.PDF ] | |
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