91309YMT [IDT]
PLL Based Clock Driver;
| 型号： | 91309YMT |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | PLL Based Clock Driver 驱动 逻辑集成电路 |
| 文件： | 总11页 (文件大小：290K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICS91309
High Performance Communication Buffer
General Description
Features
The ICS91309 is a high performance, low skew, low jitter
zero delay buffer. It uses a phase lock loop (PLL)
technologytoalign, inbothphaseandfrequency, theREF
input with the CLKOUT signal. It is designed to distribute
high speed clocks in communication systems operating
at speeds from 10 to 133 MHz.
•
•
•
•
Zero input - output delay
Frequency range 10 - 133 MHz (3.3V)
5V tolerant input REF
High loop filter bandwidth ideal for Spread Spectrum
applications.
•
•
•
Less than 125 ps cycle to cycle Jitter
Skew controlled outputs
Available in 16 pin, 150 mil SSOP, SOIC & 4.40mm
TSSOP packages
The ICS91309 provides synchronization between the
input and output. The synchronization is established via
CLKOUTfeedbacktotheinputofthePLL. Sincetheskew
between the input and output is less than +/- 350 pS, the
part acts as a zero delay buffer.
•
•
•
Skew:Group-to-Group:<215ps
Skew within Group: <100 ps
Commercial temperature range: 0°C to +70°C
ICS91309 hastwobanksoffouroutputscontrolledbytwo
address lines. Depending on the selected address line,
bankBorbothbankscanbeputinatri-statemode. Inthis
mode, the PLL is still running and only the output buffers
are put in a high impedance mode. The test mode shuts
off the PLL and connects the input directly to the output
buffers (see table below for functionality).
Pin Configuration
REF
CLKA1
CLKA2
VDD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CLKOUT
CLKA4
CLKA3
VDD
ICS91309 comes in a 16-pin 150 mil SOIC, SSOP or
4.40mm TSSOP package. In the absence of REF input,
thedevicewillenterapowerdownmode. Inthismode, the
PLL is turned off and the output buffers are pulled low.
Powerdownmodeprovidesthelowestpowerconsumption
for a standby condition.
GND
GND
CLKB1
CLKB2
FS2
CLKB4
CLKB3
FS1
Block Diagram
16 pin SSOP, SOIC & TSSOP
Functionality
Ouput
Source Shutdown
PLL
FS2 FS1 CLKA(1:4) CLKB(1:4) CLKOUT
0
0
0
1
Tristate
Driven
PLL
Bypass
Mode
Tristate
Tristate
Driven
Driven
PLL
Bypass
Mode
Driven
PLL
PLL
N
N
PLL Bypass
Mode
1
1
0
1
REF
PLL
Y
N
Driven
Driven
0093H—12/09/08
Pin Descriptions
PIN # PIN NAME
PIN TYPE DESCRIPTION
REF1
1
IN
Input reference frequency, 5V tolerant input
CLKA12
2
OUT
OUT
PWR
PWR
OUT
OUT
IN
Buffered clock output, Bank A
Buffered clock output, Bank A
Power Supply
CLKA22
3
4, 13 VDD
5, 12 GND
Ground
CLKB12
6
Buffered clock output, Bank B
Buffered clock output, Bank B
Function select input, bit 2
Function select input, bit 1
Buffered clock output, Bank B
Buffered clock output, Bank B
Buffered clock output, Bank A
Buffered clock output, Bank A
Buffered clock output, internal feedback
CLKB22
7
FS23
8
FS13
9
IN
CLKB32
10
OUT
OUT
OUT
OUT
OUT
CLKB42
11
CLKA32
14
CLKA42
15
CLKOUT2
16
Notes:
1. Weak pull-down
2. Weak pull-down on all outputs
3. Weak pull-ups on these inputs
0093H—12/09/08
2
Absolute Maximum Ratings
SupplyVoltage . . . . . . . . . . . . . . . . . . . . . . . 7.0 V
Logic Inputs (Except REF) . . . . . . . . . . . . . . GND –0.5 V to VDD + 0.5 V
Logic Input REF . . . . . . . . . . . . . . . . . . . . . . GND –0.5 V to GND + 5.5 V
Ambient OperatingTemperature . . . . . . . . . . 0°C to +70°C
StorageTemperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device.These
ratingsarestressspecificationsonlyandfunctionaloperationofthedeviceattheseoranyotherconditionsabovethose
listed in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions
for extended periods may affect product reliability.
Electrical Characteristics - Input & Supply
TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-10%
PARAMETER
Input High Voltage
Input Low Voltage
Input High Current
Input Low Current
Output High Voltage
Output Low Voltage
Operating Supply
Current
SYMBOL
VIH
CONDITIONS
MIN
2
TYP
MAX
UNITS
V
V
VIL
IIH
IIL
VoH
VoL
0.8
100
50
VIN = VDD
VIN = 0 V
IoH = -12 mA
IoL = 12 mA
0.1
19
uA
uA
V
2.4
10
0.4
45
V
IDD
mA
Outputs Unloaded; REF = 66 MHz
REF = 0 Mhz
30
IDD
Fi
CIN
Powerdown Current
Input Frequency
Input Capacitance1
uA
MHz
pF
0.3
12
133
5
NOTES:
1. Guaranteed by design and characterization, not 100% tested in production.
0093H—12/09/08
3
Electrical Characteristics - Outputs
TA = 0 - 70°C; VDD = 3.3 V +/-10%; CL = 30 pF (unless otherwise specified)
PARAMETER
Output High Voltage
Output Low Voltage
Rise Time1
SYMBOL
VOH
CONDITIONS
MIN
2.4
TYP
MAX
UNITS
V
V
ns
IOH = -12 mA
IOL = 12 mA
VOL
tr
tf
TLOCK
f1
f1
Dt1
Dt2
0.4
1.5
1.5
1
100
133
60
Measure between 0.8 V and 2.0 V
Measure between 2.0 V and 0.8 V
Stable VDD, valid clock on REF
CL = 30 pF
1.2
1.2
Fall Time1
ns
PLL Lock Time1
mS
MHz
MHz
%
%
ps
ps
ps
ps
ps
10
10
40
45
Output Frequency
CL = 10 pF
Measured at 1.4 V, Fout = 66.7 MHz
Measured at VDD/2, Fout < 50.0 MHz
50
50
Duty Cycle1
55
Jitter, Cycle-to-cycle1
Jitter, Absolute1
tjcyc-cyc
Tjabs
Tj1s
Tsk
Tsk
Tdsk-Tdsk
Dr1
Measured at 66.7 MHz, loaded outputs
10,000 cycles, CL = 30 pF
10,000 cycles, CL = 30 pF
Measured at 1.4 V
Measured at 1.4 V, within a group
Measured at VDD/2,on CLKOUT pins
Measured at 1.4 V
125
100
30
215
100
700
700
-100
70
14
Jitter, 1-Sigma1
Skew, Group-to-Group1
Skew, Output-to-Output1
Skew, Device-to-Device1
Delay, Input-to-Output1
ps
ps
Notes:
1. Guaranteed by design and characterization, not 100% tested in production.
0093H—12/09/08
4
Output to Output Skew
The skew between CLKOUT and the CLKA/B outputs is not dynamically adjusted by the PLL.Since CLKOUT is one
of the inputs to the PLL, zero phase difference is maintained from REF to CLKOUT. If all outputs are equally loaded,
zero phase difference will maintained from REF to all outputs.
If applications requiring zero output-output skew, all the outputs must equally loaded.
If the CLKA/B outputs are less loaded than CLKOUT, CLKA/B outputs will lead it; and if the CLKA/B is more loaded
than CLKOUT, CLKA/B will lag the CLKOUT.
SincetheCLKOUTandtheCLKA/Boutputsareidentical, theyallstartatthesametime, butdifferentloadscausethem
to have different rise times and different times crossing the measurement thresholds.
REF input and
all outputs
loadedEqually
REF input and CLKA/B
outputsloadedequally,with
CLKOUT loaded More.
REF input and CLKA/B
outputsloadedequally,with
CLKOUT loaded Less.
Timing diagrams with different loading configurations
0093H—12/09/08
5
Application Suggestion:
ICS91309 is a mixed analog/digital product. The analog portion of the PLL is very sensitive to any random noise
generated by charging or discharging of internal or external capacitor on the power supply pins. This type of noise will
cause excess jitter to the outputs of ICS91309. Below is a recommended lay out to alleviate any addition noise. For
additional information on FT.layout, please refer to our AN07.The 0.1 uF capacitors should be connected as close as
possible to power pins (4 & 13). An Isolated power plane with a 2.2 uF capacitor to ground will enhance the power line
stability.
33Ω
1 REF
CLKOUT 16
CLKA4 15
CLKA3 14
VDD 13
33Ω
33Ω
33Ω
33Ω
2 CLKA1
3 CLKA2
4 VDD
0.1µF
0.1µF
5 GND
GND 12
33Ω
33Ω
33Ω
33Ω
6 CLKB1
7 CLKB2
8 FS2
CLKB4 11
CLKB3 10
FS1
9
10KΩ
10KΩ
GND
VDD
GND
VDD
0093H—12/09/08
6
SYMBOL
In Millimeters
In Inches
COMMON DIMENSIONS
COMMON DIMENSIONS
MIN
1.35
0.1
MAX
1.75
0.25
1.50
0.30
0.25
MIN
.053
.0040
—
MAX
.069
.010
.059
.012
.010
A
A1
A2
b
—
0.20
0.18
.008
.007
c
SEEVARIATIONS
SEEVARIATIONS
D
E
5.80
3.80
6.20
4.00
.228
.150
.244
.157
E1
e
0.635 BASIC
0.025 BASIC
L
0.40
1.27
.016
.050
SEEVARIATIONS
SEEVARIATIONS
N
0°
8°
0°
8°
α
SEEVARIATIONS
SEEVARIATIONS
ZD
VARIATIONS
D mm.
MIN
4.80
ZD
(Ref)
0.23
D (inch)
ZD
(Ref)
N
MAX
5.00
MIN
MAX
16
.189
.197
.009
6/1/00
REV B
JEDEC MO-137
DOC# 10-0032
Ordering Information
91309yFLFT
Example:
XXXX y F LF T
Designation for tape and reel packaging
Lead Free (Optional)
Package Type
F = SSOP
Revision Designator (will not correlate with datasheet revision)
Device Type
0093H—12/09/08
7
SYMBOL
In Millimeters
In Inches
COMMON DIMENSIONS
COMMON DIMENSIONS
MIN
1.35
0.10
0.33
0.19
MAX
1.75
0.25
0.51
0.25
MIN
.0532
.0040
.013
MAX
.0688
.0098
.020
A
A1
B
C
D
E
e
.0075
.0098
SEE VARIATIONS
SEE VARIATIONS
3.80
4.0
.1497
.1574
1.27 BASIC
0.050 BASIC
H
h
5.80
0.25
0.40
6.20
0.50
1.27
.2284
.010
.016
.2440
.020
.050
L
SEE VARIATIONS
SEE VARIATIONS
N
α
0°
8°
0°
8°
VARIATIONS
D mm.
D (inch)
N
MIN
9.80
MAX
MIN
MAX
16
10.00
.3859
.3937
150 mil (Narrow Body) SOIC
Ordering Information
91309yMLFT
Example:
XXXX y M LF T
Designation for tape and reel packaging
Lead Free (Optional)
Package Type
M - SOIC
Revision Designator (will not correlate with datasheet revision)
Device Type
0093H—12/09/08
8
4.40 mm. Body, 0.65 mm. Pitch TSSOP
(173 mil)
(25.6 mil)
In Millimeters
In Inches
SYMBOL
COMMON DIMENSIONS COMMON DIMENSIONS
MIN
--
0.05
0.80
0.19
0.09
MAX
1.20
0.15
1.05
0.30
0.20
MIN
--
.002
.032
.007
.0035
MAX
.047
.006
.041
.012
.008
A
A1
A2
b
c
D
E
SEE VARIATIONS
6.40 BASIC
SEE VARIATIONS
0.252 BASIC
E1
e
4.30
4.50
.169
.177
0.65 BASIC
0.0256 BASIC
L
0.45
0.75
.018
.030
N
SEE VARIATIONS
SEE VARIATIONS
α
aaa
0°
--
8°
0.10
0°
--
8°
.004
VARIATIONS
D mm.
D (inch)
N
MIN
4.90
MAX
5.10
MIN
.193
MAX
.201
16
Reference Doc.: JEDEC Publication 95, MO-153
10-0035
Ordering Information
91309yGLFT
Example:
XXXX y G LF T
Designation for tape and reel packaging
Lead Free (Optional)
Package Type
G = TSSOP
Revision Designator (will not correlate with datasheet revision)
Device Type
0093H—12/09/08
9
Revision History
Rev.
Issue Date Description
Page #
H
12/9/2008 Removed ICS prefix from ordering information
7-9
0093H—12/09/08
10
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