CF5050A-1 Datasheet PDF - Nippon Precision Circuits Inc
| Part Number | CF5050A-1 | |
| Description | Single-output Clock Generator IC | |
| Manufacturers | Nippon Precision Circuits Inc | |
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NIPPON PRECISION CIRCUITS INC.
SM5050A
Single-output Clock Generator IC
OVERVIEW
The SM5050A is a single-output clock generator IC that generates standard high-frequency clocks derived
from a 20 to 40MHz crystal oscillator master clock. The high-frequency output stage uses optimized PLL cir-
cuits for low jitter output. The oscillator capacitors CG and CD are built-in, realizing a high-frequency output
oscillator by just the connection of a crystal. Two program inputs allows selection from 4 frequency multipli-
ers, making the SM5050A able to generate multi-standard frequency clock outputs.
FEATURES
s 2.7 to 3.6V operating supply voltage
s 20 to 40MHz master clock frequency (fundamen-
tal)
s Output frequency ranges
• 100 to 166.6MHz (VDD = VDDQ = 3.0 to 3.6V)
• 100 to 125MHz (VDD = VDDQ = 2.7 to 3.6V)
s 8mA output drive capability
s Oscillator capacitors (CG, CD) and feedback resis-
tor (Rf) built-in
s 100ps (typ) low jitter output (peak-to-peak)
s 2 program inputs for 4 selectable multiplier ratios
s Standby function
s Packaging
• Chip form (CF5050A)
• 8-pin VSOP package (SM5050AV)
PINOUT
(Top view )
P1 1
VSS 2
Q3
VDD 4
8 P0
7 INHN
6 XT
5 XTN
PAD DIMENSIONS
(Unit: µm)
P1 P0
VSS
VSSQ
Q
SA5050A
(0,0)
VDDQ VDD
XTN
Chip size: 2.16 × 1.57mm
Chip thickness: 300 ± 30µm
Chip base: V S S level
PACKAGE DIMENSIONS
(Unit: mm)
(2160,1570)
INHN
XT
0 to 10
ORDERING INFORMATION
Device
CF5050A–1
SM5050AV
Package
Chip form
8-pin VSOP
0.575 typ
3.1 ± 0.3
0.15
+0.1
−0.05
0.65
0.10
0.22 ± 0.1 0.12 M
NIPPON PRECISION CIRCUITS—1
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SM5050A
Switching Characteristics
VDD = 2.7 to 3.6V, VSS = 0V, Ta = −20 to 80°C unless otherwise noted
Parameter
Symbol
Condition
Rating
min typ
Output rise time
Output fall time
Output duty cycle
Output disable delay time1
Startup time2,3
Oscillator frequency
tr
0.2VDD → 0.8VDD, measurement
circuit 1, load circuit 1, CL = 15pF
tf
0.8VDD → 0.2VDD, measurement
circuit 1, load circuit 1, CL = 15pF
V D D = 3V, Ta = 25°C , measurement
Duty circuit 1, load circuit 1, CL = 15pF,
f≤ 166.6MHz
tP L Z
V D D = 3V, Ta = 25°C , measurement
circuit 1, load circuit 1, CL = 15pF
tS Z L
V D D = 3V, Ta = 25°C , measurement
circuit 1, load circuit 1, CL = 15pF
f Measurement circuit 1
–
–
40
–
–
20
1
1
–
–
1
–
Output frequency
Output clock jitter3
VDD = 2.7V
fO U T Measurement circuit 1
VDD = 3.0V
V D D = 3V, Ta = 25°C , 25MHz crystal,
Jitter
P0 = HIGH, P1 = LOW , measurement
circuit 1, load circuit 1,CL = 15pF,
peak-to-peak
100
100
–
–
–
100
1. Time from when INHN goes LOW until Q output goes high impedance.
2. Time from when either INHN goes LOW to HIGH or supply voltage VDD = 3.0V until normal signal output.
3. Measured values using NPC characteristics standard evaluation board and standard crystal.
NPC STANDARD CRYSTAL DATA
max
2.5
2.5
60
100
–
40
125
166.6
–
Unit
ns
ns
%
ns
ms
MHz
MHz
ps
Cb
L Ca R
f (MHz)
25
27
R (Ω)
4.368
7.421
L (mH)
1.885
2.402
Ca (fF)
21.52
14.48
Cb (pF)
4.793
4.097
NIPPON PRECISION CIRCUITS—5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for CF5050A-1 electronic component. |
| Information | Total 8 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ CF5050A-1.PDF Datasheet ] | |
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