SIT5357 datasheet(6/36 Pages) SITIME

Part #	SIT5357

Description	60 to 220 MHz, (-)0.1 to (-)0.25 ppm Elite Platform Precision Super-TCXO

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Manufacturer	SITIME [SiTime Corp.]

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SiT5357 60 to 220 MHz, ±0.1 to ±0.25 ppm Elite Platform™ Precision Super-TCXO PRELIMINARY

Rev 0.60

Page 6 of 36

www.sitime.com

Device Configurations and Pin-outs

Table 8. Device Configurations

Configuration

Pin 1

Pin 5

I

2C Function

I

2C Programmable Parameters

TCXO

OE/NC

NC

No

N/A

VCTCXO

VC

NC

No

N/A

DCTCXO

OE/NC

A0/NC

Yes

Frequency Pull Range, Frequency Pull Value, Output Enable control

Pin-out Top Views

OE/NC 1

2

3

4

5

6

7

8

9

10

NC

GND

NC

VDD

CLK

NC

Figure 3. TCXO

VC 1

2

3

4

5

6

7

8

9

10

NC

GND

NC

VDD

CLK

NC

Figure 4. VCTCXO

OE / NC 1

2

3

4

5

6

7

8

9

10

SCL

NC

GND

NC

VDD

CLK

A0

SDA

Figure 5. DCTCXO

Table 9. Pin Description

Symbol

I/O

Internal Pull-up/Pull Down

Resistor

Function

1

OE/NC/VC

OE

– Input

100 kΩ Pull-Up

H

[3]: specified frequency output

L: output is high impedance. Only output driver is disabled

NC

– No Connect

-

H or L or Open: No effect on output frequency or other device functions

VC

– Input

-

Control Voltage in VCTCXO Mode

2

SCL/NC

SCL - Input

200 kΩ Pull-Up

I

2C Serial Clock Input for DCTCXO Option. NC for TCXO and VCTCXO

Options.

NC

– No Connect

-

H or L or Open: No effect on output frequency or other device functions

3

NC

No Connect

-

H or L or Open: No effect on output frequency or other device functions

4

GND

Power

-

Connect to ground

5

A0/NC

A0

– Input

100 kΩ Pull-Up

Device I

2C address when the address selection mode is via the A0 pin.

This pin is NC when the I

2C device address is specified in the ordering

code.

A0 Logic Level

I

2C Address

0

1100010

1

1101010

NC

– No Connect

-

H or L or Open: No effect on output frequency or other device functions

6

CLK

Output

-

LVCMOS, or clipped sinewave oscillator output

7

NC

No Connect

-

H or L or Open: No effect on output frequency or other device functions

8

NC

No Connect

-

H or L or Open: No effect on output frequency or other device functions

9

VDD

Power

-

Connect to VDD

[4]

10

SDA/NC

SDA

– Input/Output

200 kΩ Pull-Up

I

2C Serial Data for DCTCXO Option. NC for TCXO and VCTCXO Options.

NC - No Connect

-

H or L or Open: No effect on output frequency or other device functions

Notes:

3.

In OE mode, a pull-

up resistor of 10 kΩ or less is recommended if pin 1 is not externally driven. If pin 1 needs to be left floating, use the NC option.

4.

0.1 μF capacitor in parallel with a 10 μF capacitor are required between Vdd and GND.

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