ZARLINK ZL30416

ZL30416
SONET/SDH Clock Multiplier PLL
Data Sheet
Features
November 2004
•
Low jitter clock outputs suitable for OC-192, OC48, OC-12, OC-3 and OC-1 SONET applications
as defined in Telcordia GR-253-CORE
•
Low jitter clock outputs suitable for STM-64, STM16, STM-4 and STM-1 applications as defined in
ITU-T G.813
•
Provides one differential LVPECL output clock
selectable to 19.44, 38.88, 77.76, 155.52 or
622.08 MHz
•
Provides a single-ended CMOS output clock at
19.44 MHz
•
Accepts a single-ended CMOS reference at
19.44 MHz or a differential LVDS, LVPECL or
CML reference at 19.44 or 77.76 MHz
•
Provides a LOCK indication
•
8 mm x 8 mm CABGA package
•
3.3 V supply
Ordering Information
ZL30416GGG
-40°C to +85°C
Description
The ZL30416 is an Analog Phase-Locked Loop (APLL)
designed to provide jitter attenuation and rate
conversion for SDH (Synchronous Digital Hierarchy)
and SONET (Synchronous Optical Network)
networking equipment. The ZL30416 generates low
jitter output clocks suitable for Telcordia GR-253CORE OC-192, OC-48, OC-12, OC-3, and OC-1 and
ITU-T G.813 STM-64, STM-16, STM-4 and STM-1
applications.
The ZL30416 accepts a CMOS compatible reference
at 19.44 MHz or a differential LVDS, LVPECL or CML
reference at 19.44 or 77.76 MHz and generates a
differential LVPECL output clock selectable to 19.44,
38.88, 77.76, 155.52 or 622.08 MHz and a singleended CMOS clock at 19.44 MHz. The ZL30416
provides a lock indication.
Applications
•
SONET/SDH line cards
LPF
REF_SEL
C19i
REFinP/N
Reference
Selection
MUX
Frequency
& Phase
Detector
FS3 FS2 FS1
Loop
Filter
VCO
19.44 MHz and 77.76 MHz
C19i or C77i
CML, LVDS,
LVPECL input
REF_FREQ
64 Ball CABGA
State
Machine
Reference
and
Bias Circuit
LOCK
BIAS
VCC
GND
Frequency
Dividers
and
Clock
Drivers
VDD
C19oEN
Figure 1 - Functional Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2004, Zarlink Semiconductor Inc. All Rights Reserved.
C19o, C38o, C77o,
C155o, C622o,
LVPECL output
OC-CLKoP/N
C19o
ZL30416
1
2
3
NC
NC
NC
NC
VCC1
GND
VCC2
GND
BIAS
LPF
LOCK
NC
4
Data Sheet
5
6
7
8
NC
NC
1
A
NC OC-CLKoP OC-CLKoN GND
B
NC
GND
GND
VCC
GND
NC
VDD
GND
GND
VCC
VCC
GND
GND
FS2
VCC
VDD
NC
REFinN
C19i
C19o
GND
REFinP
VDD
VDD
GND
GND
GND
C
GND
D
NC
E
NC
F
NC
NC REF_FREQ C19oEN
GND
VDD
REF_SEL
NC
NC
NC
G
FS3
GND
GND
FS1
VDD
H
1
VDD
- A1 corner is identified by metallized markings.
8 mm x 8 mm
Ball Pitch 0.8mm
Figure 2 - BGA 64 Ball Package (Top View)
1.0
Ball Description
Ball Description Table
Ball #
Name
Description
A1, A2
A3
NC
A4
A5
OC-CLKoP
OC-CLKoN
A6
GND
A7, A8
B1, B2
NC
B3
VCC1
Positive Analog Power Supply. +3.3 V +/-10%
B4
GND
Ground. 0 volt
B5
NC
B6, B7
GND
No internal bonding Connection. Leave unconnected.
SONET/SDH Clock (LVPECL Output). These outputs provide a selectable
differential LVPECL clock at 19.44 Hz, 38.88 MHz, 77.76 MHz, 155.52 MHz,
and 622.08 MHz. The output frequency is selected with FS3, FS2 and FS1
inputs.
Ground. 0 volt
No internal bonding Connection. Leave unconnected.
No internal bonding Connection. Leave unconnected.
Ground. 0 volt
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Zarlink Semiconductor Inc.
ZL30416
Data Sheet
Ball Description Table (continued)
Ball #
Name
B8
VCC
Positive Analog Power Supply. +3.3 V ±10%
C1
GND
Ground. 0 volt
C2
VCC2
Positive Analog Power Supply. +3.3 V ±10%
C3, C4
C5
GND
C6
NC
C7
VDD
Positive Digital Power Supply. +3.3 V ±10%
C8
GND
Ground. 0 volt
D1
BIAS
Bias Circuit.
D2
LPF
External Low-Pass Filter (Analog). Connect external RC network for the lowpass filter.
D3
NC
No internal bonding Connection. Leave unconnected.
D4
GND
Ground. 0 volt
D5, D6
VCC
Positive Analog Power Supply. +3.3 V ±10%
D7, D8
GND
Ground. 0 volt
E1
LOCK
Lock Indicator (CMOS Output). This output goes high when the PLL is
frequency locked to the selected input reference.
E2, E3
NC
No internal bonding Connection. Leave unconnected.
G4
E4
H5
FS3
FS2
FS1
Frequency Select 3-1 (CMOS Input). These inputs select the clock frequency
on the OC-CLKo output. The possible output frequencies are:
19.44 MHz (000), 38.88 MHz (001), 77.76 MHz (010), 155.52 MHz (011),
622.08 (100)
E5
VCC
Positive Analog Power Supply. +3.3 V ±10%
E6
VDD
Positive Digital Power Supply. +3.3 V ±10%
E7
NC
E8
F8
REFinN
REFinP
F1, F2
NC
F3
REF_FREQ
F4
C19oEN
F5
C19i
Description
Ground. 0 volt
No internal bonding Connection. Leave unconnected.
No internal bonding Connection. Leave unconnected.
Differential Reference Clock Input (CML/LVDS/LVPECL Compatible Input).
These inputs accept a differential clock at 77.76 MHz or 19.44 MHz as the
reference for synchronization. These inputs do not have on-chip AC coupling
capacitors.
No internal bonding Connection. Leave unconnected.
Reference Frequency (CMOS Input). This input selects the rate of the
differential input clock (REFinP/N) to be either 77.76 MHz or 19.44 MHz.
C19o Output Enable (CMOS Input). If tied high this control input enables the
C19o output clock. Pulling this pin low forces the output driver into a high
impedance state.
C19 Reference Input (CMOS Input). This is a single-ended input reference
source used for synchronization. This input accepts 19.44 MHz.
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Zarlink Semiconductor Inc.
ZL30416
Data Sheet
Ball Description Table (continued)
Ball #
Name
Description
C19o
Clock 19.44 MHz (CMOS Output). This output provides a single-ended CMOS
clock at 19.44 MHz.
F7, G1
GND
Ground. 0 volt
G2
VDD
Positive Digital Power Supply. +3.3 V ±10%
G3
REF_SEL
G4
FS3
See E4 ball description.
G5, G6
GND
Ground. 0 volt
G7, G8
VDD
Positive Digital Power Supply. +3.3 V ±10%
H1, H2
H3
NC
H4
VDD
Positive Digital Power Supply. +3.3 V ±10%
H5
FS1
See E4 ball description.
H6
VDD
Positive Digital Power Supply. +3.3 V ±10%
H7, H8
GND
Ground. 0 volt.
F6
2.0
Reference Select (CMOS Input). If tied low then the C19i single-ended
reference is used as the input reference source. If tied high then the REFinP/N
differential pair is used as the input reference source.
No internal bonding Connection. Leave unconnected.
Functional Description
The ZL30416 is an analog phased-locked loop which provides rate conversion and jitter attenuation for
SONET/SDH OC-192/STM-64, OC-48/STM-16, OC-12/STM-4 and OC-3/STM-1 applications. A functional block
diagram of the ZL30416 is shown in Figure 1 and a brief description is presented in the following sections.
2.1
Reference Selection Multiplexer
The ZL30416 accepts two types of input reference clocks:
-
differential: operating at 19.44 MHz or 77.76 MHz, compatible with LVDS/LVPECL/CML threshold levels
-
single-ended: operating at 19.44 MHz, compatible with CMOS switching levels
The REF_SEL input determines whether the single-ended CMOS reference input (REFin) or the differential
reference inputs (REFinP/N) are used as input reference clocks. The REF_FREQ input selects the rate of the
differential input clock to be either 19.44 MHz or 77.76 MHz. See Table 1 for details.
REF_SEL
REF_FREQ
Selected Input Reference
Reference Frequency
0
x
C19i
19.44 MHz (CMOS)
1
0
REFin
77.76 MHz (Differential)
1
1
REFin
19.44 MHz (Differential)
Table 1 - Input Reference Selection
4
Zarlink Semiconductor Inc.
ZL30416
2.2
Data Sheet
Frequency/Phase Detector
The Frequency/Phase Detector compares the frequency/phase of the input reference signal with the feedback
signal from the Frequency Divider circuit and provides an error signal equal to the frequency/phase
difference between the two. This error signal is passed to the Loop Filter circuit.
2.3
Lock Indicator
The ZL30416 has a built-in LOCK detector that measures frequency difference between input reference clock C19i
and the VCO frequency. When the VCO frequency is less than ±300 ppm apart from the input reference frequency
then the LOCK output is set high. The LOCK output is pulled low if the frequency difference exceeds ±1000 ppm.
2.4
Loop Filter
The Loop Filter is a low-pass filter. This low-pass filter eliminates high frequency spectral components from a phase
error signal produced by the Phase Detector. This ensures low output jitter that meets network jitter requirements.
The corner frequency of the Loop Filter is configurable with an external capacitor and resistor connected to the LPF
ball and ground as shown in Figure 3.
ZL30416
Frequency
and Phase
Detector
LPF
Loop
Filter
RF
VCO
RF=8.2 kΩ, CF=470 nF
fTYP=14.4 kHz
CF
Figure 3 - Loop Filter Elements
2.5
VCO
The voltage-controlled oscillator (VCO) receives the filtered error signal from the Loop Filter and based on the
voltage of the error signal generates a primary frequency. The VCO output is connected to the "Frequency Dividers
and Clock Drivers" block that divides VCO frequency and buffer generated clocks.
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Zarlink Semiconductor Inc.
ZL30416
2.6
Data Sheet
Frequency Dividers and Clock Drivers
The output of the VCO feeds the high frequency clock to the "Frequency Dividers and Clock Drivers" circuit to
provide one differential LVPECL compatible clock with selectable frequency and one single-ended 19.44 MHz C19o
output clock. The C19o clock can be enabled or disabled with the associated C19oEN Output Enable ball.
Internally, this block provides a feedback clock that closes the PLL loop.
The frequency of the OC-CLKo differential output clock is selected with FS3, FS2 and FS1 inputs as is shown in the
following table.
FS3
FS2
FS1
OC-CLKo
Frequency
0
0
0
19.44 MHz
0
0
1
38.88 MHz
0
1
0
77.76 MHz
0
1
1
155.52 MHz
1
0
0
622.08 MHz
1
0
1
Reserved
1
1
0
Reserved
1
1
1
Reserved
Table 2 - OC-CLKo Clock Frequency Selection
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Zarlink Semiconductor Inc.
ZL30416
3.0
Data Sheet
ZL30416 Performance
The following are some of the ZL30416 performance indicators that complement results listed in the Characteristics
section of this data sheet.
3.1
Input Jitter Tolerance
Jitter tolerance is a measure of the PLL’s ability to operate properly (i.e., remain in lock and/or regain lock in the
presence of large jitter magnitudes at various jitter frequencies) in the presence of jitter applied to its input
reference. The input jitter tolerance of the ZL30416 is shown in Figure 4. On this graph, the single line at the top
represents the input jitter tolerance and the three overlapping lines below represent the specification for minimum
input jitter tolerance for OC-192, OC-48 and OC-12 network interfaces. The jitter tolerance is expressed in
picoseconds (pk-pk) to accommodate requirements for interfaces operating at different rates.
Figure 4 - Input Jitter Tolerance
3.2
Jitter Transfer Characteristic
Jitter Transfer Characteristic represents a ratio of the jitter at the output of a PLL to the jitter applied to the input of a
PLL. This ratio is expressed in dB and it characterizes the PLL’s ability to attenuate (filter) jitter. The ZL30416 jitter
transfer characteristic complies with the maximum 0.1 dB jitter gain specified in Telcordia’s GR-253-CORE.
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Zarlink Semiconductor Inc.
ZL30416
Data Sheet
4.0
Applications
4.1
Generation of Low Jitter SONET/SDH Equipment Clocks
The functionality and performance of the ZL30416 complements the entire family of the Zarlink’s advanced network
synchronization PLL’s. Its jitter filtering characteristics exceed requirements of SONET/SDH optical interfaces
operating up to OC-192/STM-64. The ZL30416 in combination with the MT90401 or the ZL30407 (SONET/SDH
Network Element PLL’s) provides the core building blocks for high quality equipment clocks suitable for network
synchronization (see Figure 5).
622.08 MHz
OC-CLKoP/N LVPECL 155.52 MHz
77.76 MHz
38.88 MHz
19.44 MHz
C19o
CMOS
19.44 MHz
REFinP/N
ZL30416
C19i
FS1
C19oEN
RF
FS2
CF
FS3
LOCK
REF_SEL
REF_FREQ
LPF
PRI
SEC
Synchronization
Reference
Clocks
RefSel
RefAlign
ZL30407
PRIOR
SECOR
D0 - D7
DS
CS
R/W
A0 - A6
20 MHz
OCXO
C20i
LOCK
HOLDOVER
RF = 1 kΩ
CF = 470 nF
C19o
C155o
C34o/C44o
C16o
C8o
C6o
C4o
C2o
C1.5o
F16o
F8o
CMOS
LVDS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
F0o
CMOS
Data Port
uP
Controller Port
Note: Only main functional connections are shown
Figure 5 - SONET/SDH Equipment Clock
8
Zarlink Semiconductor Inc.
19.44 MHz
155.52 MHz
34.368 MHz or 44.736 MHz
16.384 MHz
8.192 MHz
6.312 MHz
4.096 MHz
2.048 MHz
1.544 MHz
8 kHz
8 kHz
8 kHz
ZL30416
4.2
Data Sheet
Recommended Interface Circuit
4.2.1
4.2.1.1
Interfacing to REFin Receiver
Interfacing REFin Receiver to LVPECL Driver
The ZL30416 REFin differential receiver can be connected to LVPECL compatible driver with an interface circuit, as
shown in Figure 7. The R1s and R2s terminating resistors should be placed close to the REFin input balls.
ZL30416
VCC=+3.3V
VDD/2
R1
R1
Receiver
Cc
Z=50 Ω
REFinP
LVPECL
Driver
REFinN
Z=50 Ω
R2
Cc
R2
Typical resistor values: R1 = 127 Ω, R2 =82.5 Ω Typical capacitor values: Cc = 0.1 µF
Figure 6 - Interfacing to LVPECL Driver
4.2.1.2
Interfacing REFin Receiver to LVDS or CML Drivers
The ZL30416 REFin differential receiver can be connected to LVDS or CML driver with an interface circuit, as
shown in Figure 7. The 100 Ω terminating resistors should be placed close to the REFin input balls.
ZL30416
VDD/2
LVDS
or
CML
Driver
Receiver
Cc
Z=50 Ω
REFinP
100Ω
REFinN
Z=50 Ω
Cc
Typical capacitor values: Cc = 0.1 µF
Figure 7 - Interfacing to LVDS or CML Driver
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Zarlink Semiconductor Inc.
ZL30416
4.2.2
4.2.2.1
Data Sheet
Interfacing to OC-CLKo Output
LVPECL to LVPECL Interface
The OC-CLKo outputs provide differential LVPECL clocks at 622.08 MHz, 155.52 MHz, 77.76 MHz, 38.88 MHz and
19.44 MHz selectable with FS3, FS2 and FS1 frequency select inputs. The LVPECL output drivers require a 50 Ω
termination connected to the Vcc-2V source for each output terminal at the terminating end as shown below. The
terminating resistors should be placed close to the LVPECL receiver.
Typical resistor values: R1 = 127 Ω, R2 =82.5 Ω
+3.3 V
0.1 uF
ZL30416
VCC=+3.3 V
VCC
LVPECL
Driver
OC-CLKoP
Z=50 Ω
R1
R1
R2
R2
Z=50 Ω
OC-CLKoN
GND
Figure 8 - LVPECL to LVPECL Interface
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Zarlink Semiconductor Inc.
LVPECL
Receiver
ZL30416
4.3
Data Sheet
Power supply and BIAS Circuit Filtering Recommendations
Figure 9 presents a complete filtering arrangement that is recommended for applications requiring maximum jitter
performance. The level of required filtering is subject to further optimization and simplification. Please check
Zarlink’s web site for updates.
Ferrite Bead
0.1 uF 0.1 uF
10 uF
2
3
NC
NC
NC
NC
VCC1
GND
VCC2
GND
BIAS
LPF
LOCK
NC
4
5
6
7
8
NC
NC
A
4.7 Ω
NC OC-CLKoP OC-CLKoN GND
B
33 uF
220 Ω
1
1
0.1 uF 0.1 uF
NC
GND
GND
VCC
GND
NC
VDD
GND
GND
VCC
VCC
GND
GND
FS2
VCC
VDD
NC
REFinN
C19o
GND
REFinP
VDD
VDD
GND
GND
GND
C
33 uF
GND
0.1 uF 0.1 uF
D
33 uF
0.1 uF
NC
E
NC
0.1 uF 0.1 uF
F
+3.3 V Power Rail
NC
NC REF_FREQ C19oEN
C19i
GND
VDD
REF_SEL
GND
GND
NC
NC
NC
FS1
VDD
G
FS3
H
VDD
0.1 uF 0.1 uF
0.1 uF
0.1 uF
Notes:
1. All the ground pins (GND) are connected to the same ground plane.
2. Select Ferrite Bead with IDC > 400 mA and RDC in a range from 0.10 Ω to 0.15 Ω.
Figure 9 - Power Supply and BIAS Circuit Filtering
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Zarlink Semiconductor Inc.
0.1 uF 0.1 uF
0.1 uF
ZL30416
5.0
Data Sheet
Characteristics
Absolute Maximum Ratings†
Characteristics
Sym.
Min.‡
Max.‡
Units
VDDR, VCCR
TBD
TBD
V
1
Supply voltage
2
Voltage on any ball
VBALL
-0.5
VCC + 0.5
VDD + 0.5
V
3
Current on any ball
IBALL
-0.5
30
mA
4
ESD rating
VESD
1250
V
5
Storage temperature
TST
125
°C
6
Package power dissipation
PPD
1.0
W
-55
† Voltages are with respect to ground unless otherwise stated.
‡ Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
Recommended Operating Conditions†
Characteristics
1
Operating temperature
2
Positive supply
Sym.
Min.
Typ.‡
Max.
Units
TOP
-40
25
+85
°C
VDD, VCC
3.0
3.3
3.6
V
Notes
† Voltages are with respect to ground unless otherwise stated.
‡ Typical figures are for design aid only: not guaranteed and not subject to production testing.
DC Electrical Characteristics†
Characteristics
Sym.
Min.
IDD+ICC
Typ.‡
Max.
Units
Notes
mA
Note 1
Note 2
1
Supply current
2
CMOS: High-level input
voltage
VIH
0.7 VDD
VDD
V
3
CMOS: Low-level input
voltage
VIL
0
0.3 VDD
V
4
CMOS: Input leakage current
IIL
1
5
uA
VI = VDD
or 0 V
5
CMOS: Input bias current for
pulled-down inputs: FS1, FS2
and FS3
IB-PU
300
uA
VI = VDD
6
CMOS: Input bias current for
pulled-up inputs: C19oEN
IB-PD
90
uA
VI = 0 V
7
CMOS: High-level output
voltage
VOH
V
IOH = 8 mA
185
2.4
12
Zarlink Semiconductor Inc.
ZL30416
Data Sheet
DC Electrical Characteristics† (continued)
Characteristics
Sym.
Min.
Typ.‡
Max.
Units
Notes
0.4
V
IOL = 4 mA
8
CMOS: Low-level output
voltage
VOL
9
CMOS: C19o output rise time
TR
1.8
3.3
ns
18 pF load
10
CMOS: C19o output fall time
TF
1.1
1.4
ns
18 pF load
11
LVPECL: Differential output
voltage
IVOD_LVPEC
LI
1.30
V
for 622 MHz
Note 2
12
LVPECL: Offset voltage
VOS_LVPECL
V
for 622 MHz
Note 2
13
LVPECL: Output rise/fall times
ps
for 622 MHz
Note 2
Vcc1.38
Vcc1.27
Vcc1.15
260
TRF
† Voltages are with respect to ground unless otherwise stated.
‡ Typical figures are for design aid only: not guaranteed and not subject to production testing.
Supply voltage and operating temperature are as per Recommended Operating Conditions.
Note 1: The ILVPECL current is determined by the external termination network connected to LVPECL outputs. More than 25% of this
current (10 mA) flows outside the chip and it does not contribute to the internal power dissipation. The Supply Current value
listed in the table includes this current to reflect total current consumption of the ZL30416 and the attached LVPECL
termination network.
Note 2:
LVPECL outputs terminated with ZT = 50 Ω resistors biased to VCC -2V (see Figure 8).
AC Electrical Characteristics† - Output Timing Parameters Measurement Voltage Levels
Characteristics
Sym.
CMOS
LVPECL
Units
VT-CMOS
VT-LVPECL
0.5 VDD
0.5 VOD_LVPECL
V
1
Threshold voltage
2
Rise and fall threshold voltage high
VHM
0.7 VDD
0.8 VOD_LVPECL
V
3
Rise and fall threshold voltage low
VLM
0.3 VDD
0.2 VOD_LVPECL
V
† Voltages are with respect to ground unless otherwise stated.
Timing Reference Points
VHM
VT
VLM
All Signals
tIF, tOF
tIR, tOR
Figure 10 - Output Timing Parameter Measurement Voltage Levels
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Zarlink Semiconductor Inc.
ZL30416
Data Sheet
AC Electrical Characteristics† - C19i Input to C19o Output Timing
Characteristics
1
C19i to C19o delay
Sym.
Min.
Typ.‡
Max.
Units
tC19D
4.4
6.7
9.4
ns
Notes
† Supply voltage and operating temperature are as per Recommended Operating Conditions.
‡ Typical figures are for design aid only: not guaranteed and not subject to production testing.
C19i
V T-CMOS
(19.44 MHz)
tC19D
C19o
V T-CMOS
(19.44 MHz)
Note: All output clocks have nominal 50% duty cycle.
Figure 11 - C19i Input to C19o Output Timing
AC Electrical Characteristics† - REFin to C19o Output Timings
Characteristics
Sym.
Min.
Typ.‡
Max.
Units
1
REFin (19.44 MHz) to C19o
(19.44 MHz) delay
tR19OC19D
1.4
7.8
10
ns
2
REFin (77.76 MHz) to C19o
(19.44 MHz) delay
tR77OC77D
7.9
9.9
13
ns
Notes
tR19OC19D
REFin
VT-LVPECL
(19.44 MHz)
tRW
REFin
tR77OC77D
VT-LVPECL
(77.76 MHz)
VT-CMOS
C19o
(19.44 MHz)
Figure 12 - REFin Input to C19o Output Timing
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Zarlink Semiconductor Inc.
ZL30416
Data Sheet
AC Electrical Characteristics† - C19i Input to OC-CLKo Output Timing
Characteristics
Sym.
Min.
Typ.‡
Max.
Units
1
C19i(CMOS) to C19o(LVPECL) delay
tC19D
1.4
3.3
5.1
ns
2
C19i(CMOS) to OC-CLKo(38) delay
tC38D
1.2
3.0
4.8
ns
3
C19i(CMOS) to OC-CLKo(77) delay
tC77D
0.9
2.6
4.4
ns
4
C19i(CMOS) to OC-CLKo(155) delay
tC155D
0.6
2.3
4.1
ns
5
C19i(CMOS) to OC-CLKo(622) delay
tC622D
0
0.8
1.6
ns
6
All Output Clock duty cycle
dC
48
50
52
%
Notes
† Supply voltage and operating temperature are as per Recommended Operating Conditions.
‡ Typical figures are for design aid only: not guaranteed and not subject to production testing.
C19i
VT-CMOS
(19.44 MHz)
tC19D
OC-CLKo(19)
VT-LVPECL
(19.44 MHz)
tC38D
OC-CLKo(38)
VT-LVPECL
(38.88 MHz)
tC77D
VT-LVPECL
OC-CLKo(77)
(77.76 MHz)
tC155D
OC-CLKo(155)
(155.52 MHz)
VT-LVPECL
tC622D
OC-CLKo(622)
(622.08 MHz)
VT-LVPECL
Note: All output clocks have nominal 50% duty cycle.
Figure 13 - C19i Input to OC-CLKo Output Timing
15
Zarlink Semiconductor Inc.
ZL30416
Data Sheet
AC Electrical Characteristics† - REFin (19.44 MHz) Input to OC-CLKo Output Timing
Characteristics
Sym.
Min.
Typ.‡
Max.
Units
1
REFin(19.44 MHz) to OC-CLKo(19) delay
tC19-19D
2.4
4.3
6.2
ns
2
REFin(19.44 MHz) to OC-CLKo(38) delay
tC19-38D
1.9
4.0
6.0
ns
3
REFin(19.44 MHz) to OC-CLKo(77) delay
tC19-77D
1.7
3.7
5.6
ns
4
REFin(19.44 MHz) to OC-CLKo(155) delay
tC19-155D
1.4
3.4
5.3
ns
5
REFin(19.44 MHz) to OC-CLKo(622) delay
tC19-622D
0
0.8
1.6
ns
Notes
† Supply voltage and operating temperature are as per Recommended Operating Conditions.
‡ Typical figures are for design aid only: not guaranteed and not subject to production testing.
VT-LVPECL
REFin
(19.44 MHz)
tC19-19D
OC-CLKo(19)
VT-LVPECL
(19.44 MHz)
tC19-38D
OC-CLKo(38)
VT-LVPECL
(38.88 MHz)
tC19-77D
OC-CLKo(77)
VT-LVPECL
(77.76 MHz)
tC19-155D
OC-CLKo(155)
(155.52 MHz)
VT-LVPECL
tC19-622D
OC-CLKo(622)
(622.08 MHz)
VT-LVPECL
Note: All output clocks have nominal 50% duty cycle.
Figure 14 - REFin (19.44 MHz) Input to OC-CLKo Output Timing
16
Zarlink Semiconductor Inc.
ZL30416
Data Sheet
AC Electrical Characteristics† - REFin (77.76 MHz) Input to OC-CLKo Output Timing
Characteristics
Sym.
Min.
Typ.‡
Max.
Units
1
REFin(77.76 MHz) to OC-CLKo(19) delay
tC77-19D
3.5
6.5
9.5
ns
2
REFin(77.76 MHz) to OC-CLKo(38) delay
tC77-38D
3.2
6.2
9.2
ns
3
REFin(77.76 MHz) to OC-CLKo(77) delay
tC77-77D
2.9
5.9
8.8
ns
4
REFin(77.76 MHz) to OC-CLKo(155) delay
tC77-155D
2.6
5.6
8.6
ns
5
REFin(77.76 MHz) to OC-CLKo(622) delay
tC77-622D
0
0.8
1.6
ns
Notes
† Supply voltage and operating temperature are as per Recommended Operating Conditions.
‡ Typical figures are for design aid only: not guaranteed and not subject to production testing.
VT-LVPECL
REFin
(77.76 MHz)
tC77-19D
OC-CLKo(19)
VT-LVPECL
(19.44 MHz)
tC77-38D
OC-CLKo(38)
VT-LVPECL
(38.88 MHz)
tC77-77D
VT-LVPECL
OC-CLKo(77)
(77.76 MHz)
tC77-155D
OC-CLKo(155)
(155.52 MHz)
VT-LVPECL
tC77-622D
OC-CLKo(622)
(622.08 MHz)
VT-LVPECL
Note: All output clocks have nominal 50% duty cycle.
Figure 15 - REFin (77.76 MHz) Input to OC-CLKo Output Timing
17
Zarlink Semiconductor Inc.
ZL30416
Data Sheet
Performance Characteristics - Functional - (VCC = 3.3 V ±10%; TA = -40 to 85°C)
Characteristics
1
Pull-in range
2
Lock Time
Min.
Typ.
Max.
Units
±1000
ppm
300
Notes
At nominal input
reference frequency
C19i = 19.44 MHz
ms
Performance Characteristics: Output Jitter Generation - GR-253-CORE conformance (VCC = 3.3 V ±10%;
TA = -40 to 85°C)
ZL30416 Jitter Generation
Performance
GR-253-CORE Jitter Generation Requirements
Interface
(Category II)
1
2
3
Jitter
Measurement
Filter
OC-192
STS-192
50 kHz - 80 MHz
OC-48
STS-48
12 kHz - 20 MHz
OC-12
STS-12
12 kHz - 5 MHz
Equivalent
limit in time
domain
Typ.†
Max.‡
0.1 UIPP
10.0
-
7.31
psP-P
0.01 UIRMS
1.0
0.52
0.94
psRMS
0.1 UIPP
40.2
-
7.32
psP-P
0.01 UIRMS
4.02
0.58
0.83
psRMS
0.1 UIPP
161
-
4.37
psP-P
0.01 UIRMS
16.1
0.34
0.60
psRMS
Limit in
UI
† Typical figures are for design aid only: not guaranteed and not subject to production testing.
‡ Loop Filter components: RF=8.2 kΩ, CF=470 nF.
18
Zarlink Semiconductor Inc.
Units
ZL30416
Data Sheet
Performance Characteristics: Output Jitter Generation - G.813 conformance (Option 1 and 2) (VCC = 3.3 V
±10%; TA = -40 to 85°C)
ZL30416 Jitter Generation
Performance
G.813 Jitter Generation Requirements
Interface
Jitter
Measurement
Filter
Limit in
UI
Equivalent
limit in time
domain
Typ.†
Max.‡
10.0
-
6.95
psP-P
0.49
0.89
psRMS
-
11.5
psP-P
0.82
1.04
psRMS
-
6.40
psP-P
0.50
0.68
psRMS
-
8.67
psP-P
0.68
1.06
psRMS
-
3.33
psP-P
0.26
0.42
psRMS
-
19.1
psP-P
1.51
2.88
psRMS
-
6.95
psP-P
0.49
0.89
psRMS
-
11.5
psP-P
0.82
1.04
psRMS
-
7.32
psP-P
0.58
0.83
psRMS
-
4.37
psP-P
0.34
0.60
psRMS
Units
Option 1
1
STM-64
4 MHz to 80 MHz
20 kHz to 80 MHz
2
STM-16
1 MHz to 20 MHz
5 kHz to 20 MHz
3
STM-4
250 kHz to 5 MHz
1 kHz to 5 MHz
0.1 UIpp
0.5 UIpp
50.2
0.1 UIpp
40.2
0.5 UIpp
201
0.1 UIpp
161
0.5 UIpp
804
Option 2
5
STM-64
4 MHz to 80 MHz
20 kHz to 80 MHz
6
7
STM-16
STM-4
12 kHz - 20 MHz
12 kHz - 5 MHz
0.1 UIpp
10.0
0.3 UIpp
30.1
0.1 UIpp
40.2
0.1 UIpp
161
† Typical figures are for design aid only: not guaranteed and not subject to production testing.
‡ Loop Filter components: RF=8.2 kΩ, CF=470 nF.
19
Zarlink Semiconductor Inc.
ZL30416
Data Sheet
Performance Characteristics: Output Jitter Generation - ETSI EN 300 462-7-1conformance (VCC = 3.3 V ±10%;
TA = -40 to 85°C)
ZL30416 Jitter Generation
Performance
EN 300 462-7-1 Jitter Generation Requirements
Interface
1
STM-16
Jitter
Measurement
Filter
1 MHz to 20 MHz
5 kHz to 20 MHz
2
STM-4
250 kHz to 5 MHz
1 kHz to 5 MHz
Limit in
UI
Equivalent
limit in time
domain
Typ.†
Max.‡
40.2
-
6.40
psP-P
0.50
0.68
psRMS
-
8.67
psP-P
0.68
1.06
psRMS
-
3.33
psP-P
0.26
0.42
psRMS
-
19.1
psP-P
1.51
2.88
psRMS
0.1 UIpp
0.5UIpp
201
0.1 UIpp
161
0.5 UIpp
804
† Typical figures are for design aid only: not guaranteed and not subject to production testing.
‡ Loop Filter components: RF=8.2 kΩ, CF=470 nF
20
Zarlink Semiconductor Inc.
Units
Package Code
c Zarlink Semiconductor 2003 All rights reserved.
ISSUE
ACN
DATE
APPRD.
Previous package codes
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