DATASHEET
5P49V5933 MARCH 10, 2017 1 ©2017 Integrated Device Technology, Inc.
Programmable Clock Generator 5P49V5933
Description
The 5P49V5933 is a programmable clock generator intended
for high performance consumer, networking, industrial,
computing, and data-communications applications.
Configurations may be stored in on-chip One-Time
Programmable (OTP) memory or changed using I
2
C
interface. This is IDTs fifth generation of programmable clock
technology (VersaClock
®
5).
5P49V5933 by default uses an integrated 25MHz crystal as
input reference. It also has a redundant external clock input.
A glitchless manual switchover functions allows selection of
either one as mentioned above as input reference during
normal operation
Two select pins allow up to 4 different configurations to be
programmed and accessible using processor GPIOs or
bootstrapping. The different selections may be used for
different operating modes (full function, partial function, partial
power-down), regional standards (US, Japan, Europe) or
system production margin testing.
The device may be configured to use one of two I
2
C
addresses to allow multiple devices to be used in a system.
Pin Assignment
Features
Generates up to two independent output frequencies
High performance, low phase noise PLL, < 0.7 ps RMS
typical phase jitter on outputs:
– PCIe Gen1, 2, 3 compliant clock capability
– USB 3.0 compliant clock capability
– 1 GbE and 10 GbE
Two fractional output dividers (FODs)
Independent Spread Spectrum capability on each output
pair
Two banks of internal non-volatile in-system programmable
or factory programmable OTP memory
I
2
C serial programming interface
One reference LVCMOS output clock
Two universal output pairs:
– Each configurable as one differential output pair or two
LVCMOS outputs
I/O Standards:
– Single-ended I/Os: 1.8V to 3.3V LVCMOS
– Differential I/Os - LVPECL, LVDS and HCSL
Input frequency ranges:
– LVDS, LVPECL, HCSL Differential Clock Input (CLKIN,
CLKINB) – 1MHz to 350MHz
Output frequency ranges:
– LVCMOS Clock Outputs – 1MHz to 200MHz
– LVDS, LVPECL, HCSL Differential Clock Outputs –
1MHz to 350MHz
Individually selectable output voltage (1.8V, 2.5V, 3.3V) for
each output pair
Redundant clock inputs with manual switchover
Programmable loop bandwidth
Programmable output to output skew
Programmable slew rate control
Individual output enable/disable
Power-down mode
1.8V, 2.5V or 3.3V core V
DDD
, V
DDA
Available in 24-pin VFQFPN 4mm x 4mm package
-40° to +85°C industrial temperature operation
1
7
24-pin VFQFPN
19
13
NC
NC
V
DDA
CLKIN
NC
NC
CLKINB
CLKSEL
NC
NC
V
DDA
V
DDA
SD/OE
SEL1/SDA
SEL0/SCL
V
DDO
2
OUT2
OUT2B
OUT1B
OUT1
V
DDO
1
V
DDD
V
DDO
0
OUT0_SEL_I2CB
EPAD
2
3
4
5
6
8
9
10 11
12
14
15
16
17
18
2021222324
PROGRAMMABLE CLOCK GENERATOR 2 MARCH 10, 2017
5P49V5933 DATASHEET
Functional Block Diagram
Typical Applications
Ethernet switch/router
PCI Express 1.0/2.0/3.0
Broadcast video/audio timing
Multi-function printer
Processor and FPGA clocking
Any-frequency clock conversion
MSAN/DSLAM/PON
Fiber Channel, SAN
Telecom line cards
1 GbE and 10 GbE
CLKIN
CLKINB
CLKSEL
SD/OE
SEL1/SDA
SEL0/SCL
V
DDA
V
DDD
V
DDO
0
OUT0_SEL_I2CB
V
DDO
1
OUT1
OUT1B
V
DDO
2
OUT2
OUT2B
FOD1
FOD2
PLL
OTP
and
Control Logic
OSC
25MHz
MARCH 10, 2017 3 PROGRAMMABLE CLOCK GENERATOR
5P49V5933 DATASHEET
Table 1:Pin Descriptions
Number Name Description
1 CLKIN Input Pull-down Differential clock input. Weak 100kohms internal pull-down.
2 CLKINB Input Pull-down Complementary differential clock input. Weak 100kohms internal pull-down.
3 NC -- No connect.
4 NC -- No connect.
5 VDDA Power
Analog functions power supply pin. Connect to 1.8V to 3.3V. VDDA and VDDD
should have the same voltage applied.
6 CLKSEL Input Pull-down
Input clock select. Selects the active input reference source, when in Manual
switchover mode.
0 = Integrated Crystal (default)
1 = CLKIN, CLKINB
CLKSEL Polarity can be changed by I2C programming as shown in Table 4.
7 SD/OE Input Pull-down
Enables/disables the outputs (OE) or powers down the chip (SD). The SH bit
controls the configuration of the SD/OE pin. The SH bit needs to be high for
SD/OE pin to be configured as SD. The SP bit (0x02) controls the polarity of the
signal to be either active HIGH or LOW only when pin is configured as OE
(Default is active LOW.) Weak internal pull down resistor. When configured as
SD, device is shut down, differential outputs are driven high/low, and the single-
ended LVCMOS outputs are driven low. When configured as OE, and outputs are
disabled, the outputs can be selected to be tri-stated or driven high/low,
depending on the programming bits as shown in the SD/OE Pin Function Truth
table.
8 SEL1/SDA Input Pull-down
Configuration select pin, or I2C SDA input as selected by OUT0_SEL_I2CB.
Weak internal pull down resistor.
9 SEL0/SCL Input Pull-down
Configuration select pin, or I2C SCL input as selected by OUT0_SEL_I2CB.
Weak internal pull down resistor.
10 VDDO2 Power
Output power supply. Connect to 1.8 to 3.3V. Sets output voltage levels for
OUT2/OUT2B.
11 OUT2 Output Output Clock 2. Please refer to the Output Drivers section for more details.
12 OUT2B Output
Complementary Output Clock 2. Please refer to the Output Drivers section for
more details.
13 NC -- No connect.
14 NC -- No connect.
15 VDDA Power
Analog functions power supply pin. Connect to 1.8V to 3.3V. VDDA and VDDD
should have the same voltage applied.
16 NC -- No connect.
17 NC -- No connect.
18 VDDA Power
Analog functions power supply pin. Connect to 1.8V to 3.3V. VDDA and VDDD
should have the same voltage applied.
19 OUT1B Output
Complementary Output Clock 1. Please refer to the Output Drivers section for
more details.
20 OUT1 Output Output Clock 1. Please refer to the Output Drivers section for more details.
21 VDDO1 Power
Output power supply. Connect to 1.8 to 3.3V. Sets output voltage levels for
OUT1/OUT1B.
22 VDDD Power
Digital functions power supply pin. Connect to 1.8 to 3.3V. VDDA and VDDB
should have the same voltage applied.
23 VDDO0 Power
Power supply pin for OUT0_SEL_I2CB. Connect to 1.8 to 3.3V. Sets output
voltage levels for OUT0.
24 OUT0_SELB_I2C Input/Output Pull-down
Latched input/LVCMOS Output. At power up, the voltage at the pin
OUT0_SEL_I2CB is latched by the part and used to select the state of pins 8
and 9. If a weak pull up (10Kohms) is placed on OUT0_SEL_I2CB, pins 8 and 9
will be configured as hardware select pins, SEL1 and SEL0. If a weak pull down
(10Kohms) is placed on OUT0_SEL_I2CB or it is left floating, pins 8 and 9 will
act as the SDA and SCL pins of an I2C interface. After power up, the pin acts as
a LVCMOS reference output which is the same frequency as the input reference.
At default, 25MHz integrated crystal is used so OUT0 will also be 25MHz.
EPAD VEE Power Connect to ground pad.
Type

5P49V5933B000LTGI

Mfr. #:
Manufacturer:
IDT
Description:
Clock Generators & Support Products VersaClock 5 CLK Gen 350MHz 2 Input
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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