CDCM7005
www.ti.com
SCAS793E –JUNE 2005–REVISED FEBRUARY 2013
3.3-V HIGH PERFORMANCE CLOCK SYNCHRONIZER AND JITTER CLEANER
Check for Samples: CDCM7005
1
FEATURES
PIN ASSIGNMENTS (TOP VIEW)
•
High Performance LVPECL and LVCMOS PLL
Clock Synchronizer
1
2
3
4
5
6
7
8
•
Two Reference Clock Inputs (Primary and
Secondary Clock) for Redundancy Support
With Manual or Automatic Selection
CTRL_
DATA
A
B
C
D
E
F
PRI_REF REF_SEL VCC_CP CP_OUT CTRL_LE CTRL_CLK
PLL_LOCK
SEC_REF
VBB
GND
GND
GND
GND
GND
VCC
Y1A
GND
AVCC
GND
VCC
GND
VCC
Y1B
GND
AVCC
GND
VCC
GND
VCC
Y2A
GND
AVCC
GND
VCC
GND
VCC
Y2B
GND
AVCC
GND
VCC
GND
VCC
Y3A
GND
AVCC
VCC
VCC
VCC
VCC
Y3B
GND
•
•
Accepts LVCMOS Input Frequencies Up to 200
MHz
STATUS_
REF or
PRI_SEC_
CLK
VCXO_IN Clock is Synchronized to One of the
Two Reference Clocks
STATUS_
VCXO
or
VCXO_IN
VCXO_IN
Y0A
•
•
VCXO_IN Frequencies Up to 2.2 GHz (LVPECL)
I_REF_CP
Outputs Can Be a Combination of LVPECL and
LVCMOS (Up to Five Differential LVPECL
Outputs or Up to 10 LVCMOS Outputs)
VCC
Y4B
Y4A
•
•
Output Frequency is Selectable by x1, /2, /3, /4,
/6, /8, /16 on Each Output Individually
Y0B
G
H
Efficient Jitter Cleaning From Low PLL Loop
Bandwidth
RESET
or
HOLD
PD
•
•
Low Phase Noise PLL Core
P0022-01
Programmable Phase Offset (PRI_REF and
SEC_REF to Outputs)
•
•
•
Wide Charge Pump Current Range From
200 μA to 3 mA
Dedicated Charge Pump Supply (VCC_CP) for
Wide Tuning Voltage Range VCOs
36 35 34 33 32 31 30 29 28 27 26 25
37
GND
SEC_REF
AVCC
AVCC
VBB
24
23
22
21
20
19
18
17
16
15
14
13
STATUS_REF or
PRI_SEC_CLK
38
39
40
41
42
43
44
45
46
47
48
Presets Charge Pump to VCC_CP/2 for Fast
Center-Frequency Setting of VC(X)O
STATUS_VCXO or
I_REF_CP
VCC
VCC
VCC
VCC
Y4B
Y4A
VCC
•
•
Analog and Digital PLL Lock Indication
VCC
Thermal Pad
must be
soldered to GND
VCXO_IN
VCXO_IN
VCC
Provides VBB Bias Voltage Output for Single-
Ended Input Signals (VCXO_IN)
•
•
Frequency Hold-Over Mode Improves Fail-Safe
Operation
VCC
Y0A
RESET or
HOLD
Y0B
Power-Up Control Forces LVPECL Outputs to
3-State at VCC < 1.5 V
VCC
VCC
1
2
3
4
5
6
7
8
9
10 11 12
•
•
•
SPI Controllable Device Setting
3.3-V Power Supply
P0023-01
Packaged in 64-Pin BGA (0,8 mm Pitch – ZVA)
or 48-Pin QFN (RGZ)
•
Industrial Temperature Range –40°C to 85°C
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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