M66238FP Datasheet, PDF (1/11 Pages) Mitsubishi Electric Semiconductor – STANDARD CLOCK GENERATOR WITH PLL FREQUENCY SYNTHESIZER

MITMSITUSBUISBHISI H〈DI I〈GDIITGAITLAALSASSPS〉 P〉
M662M36682F38PFP
STASNTADNADRADRCDLOCLCOKCGKEGNEENREATROATROWRITWHITPHLLPLFLRFERQEUQEUNECNYCSYYSNYTNHTEHSEIZSEIRZER
DESCRIPTION
The M66238 is a LSI that incorporates a PLL synthesizer and
a sync clock generator in it. The PLL synthesizer covers the
range of 25MHz to 50MHz at the minimum steps of 3kHz.
The sync circuit outputs a clock and a one-shot pulse which
are synchronized with an external trigger signal. Setting a
dividing ratio allows acquisition of sync clock outputs within
the range of 0.78MHz to 25MHz.
FEATURES
• Sync clock output frequency range: 1/1, 1/2, 1/4, 1/8, 1/16,
1/32 of 25 to 50MHz
• Sync accuracy (jitter): ±3ns
• Trigger input: Polarity selectable
• One-shot pulse output: Polarity and width selectable
• 5V power supply
APPLICATION
Pixel clock generator
PIN CONFIGURATION (TOP VIEW)
DIGITAL GND PIN DGND 1
RESET INPUT RESET → 2
CHIP SELECT INPUT CS → 3
SERIAL DATA INPUT SIN → 4
SERIAL CLOCK INPUT SCLK → 5
CLOCK OUTPUT XOUT ← 6
CLOCK INPUT XIN → 7
DIGITAL GND PIN DGND 8
DIGITAL POWER
SUPPLY PIN
DVCC
9
 TCKI ^→ 10
TEST
PIN 
TCKO
←
11
PLL OUTPUT CKO/PLLO ← 12
CLOCK OUTPUT CKOB ← 13
ONE-SHOT PULSE OUTPUT PULSE ← 14
SYNC OUTPUT POWER
SUPPLY PIN
VCCO
15
SYNC OUTPUT GND PIN GNDO 16
32 AGND ANALOG GND PIN
31
AVCC
ANALOG POWER
SUPPLY PIN
30 AGND ANALOG GND PIN
29 → RV VCO LOAD OUTPUT
28
AVCC
ANALOG POWER
SUPPLY PIN
27 AGND ANALOG GND PIN
26 ← CPIN FILTER CONNECT PIN
25 AGND ANALOG GND PIN
24 → CPOUT FILTER CONNECT PIN
23 DGND DIGITAL GND PIN
22
DVCC
DIGITAL POWER
SUPPLY PIN
21 → UP 
 TEST PIN
20 → DOWN 
19
DVCC
DIGITAL POWER
SUPPLY PIN
18 DGND DIGITAL GND PIN
17 ← TR TRIGGER INPUT
Outline 32P2W-A
BLOCK DIAGRAM
CHIP SELECT INPUT CS 3
SERIAL DATA INPUT SIN 4
SERIAL CLOCK INPUT SCLK 5
CLOCK INPUT XIN 7
CLOCK OUTPUT XOUT 6
RESET INPUT RESET 2
TRIGGER INPUT TR 17
SERIAL
WRITE
CONTROL
CIRCUIT
CRYSTAL
OSCILLATOR
CIRCUIT
fin
12-BIT
DIVIDER
COMMAND
REGISTER
COMMAND CONTROL
CIRCUIT
15
12
15-BIT COUNTER
PHASE
COMPARATOR
VCO
fvco
25MHz ~ 50MHz
CHARGE
PUMP
10 TCKI
11 TCKO
TEST PIN
SYNC/DIVIDER
CIRCUIT
( ) ^{SYNC CLOCK}
GENERATOR
12 CKO/PLLO PLL OUTPUT
13 CKOB CLOCK OUTPUT
14 PULSE ONE-SHOT PULSE OUTPUT
21
20
24
UP DOWN CPOUT
26
29
CPIN RV
TEST PIN
FILTER CONNECT PIN
FILTER CONNECT PIN VCO LOAD OUTPUT
1