STC3500 datasheet(5/48 Pages) CONNOR-WINFIELD

No de pièce	STC3500

Description	INTEGRATED - STRATUM 3 TIMING SOURCE

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Fabricant	CONNOR-WINFIELD [Connor-Winfield Corporation]

Site Internet	http://www.conwin.com

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5 / 48 page

Preliminary Data Sheet: TM060

Page 5 of 48

Rev: P06

Date: 11/22/04

Pin Description

Table 1 continued

Pin Name

Pin #

I/O

Description

Sel0

A9

I

In Hardware Mode (HM_Ref = 1), Sel0 ~ Sel3 will determine the Free Run,

Locked, Hold Over, and the Active Reference in Locked Mode.

See Table 5 in Hardware Control Modes section

Sel1

A10

I

See Table 5 in Hardware Control Modes section

Sel2

A11

I

See Table 5 in Hardware Control Modes section

Sel3

A12

I

See Table 5 in Hardware Control Modes section

BITS_Sel

C11

I

1.544 MHz or 2.048 MHz BITS clock selection, 1 = 1.544 MHz, 0 = 2.048 MHz

LOS

H2

O

Loss of signal indicator for the selected reference, 1 = Loss of Signal

LOL

J2

O

Loss of phase lock, 1 = Loss of Lock

Hold_Rdy

K2

O

Hold Over history built and usable = 1

Xref

K1

I

Cross Reference Input

Ref1

M1

I

Reference Input 1

Ref2

M2

I

Reference Input 2

Ref3

M3

I

Reference Input 3

Ref4

M4

I

Reference Input 4

Ref5

M5

I

Reference Input 5

Ref6

M6

I

Reference Input 6

Ref7

M7

I

Reference Input 7

Ref8

M8

I

Reference Input 8

Sync_Clk

G12

O

Synchronous Clock: Output frequency is dependent on VCXO frequency

Sync_8K

J12

O

Synchronous Clock: 8 kHz

BITS_Clk

L11

O

BITS clock output

Sync_2K

K12

O

Multi-frame sync: 2 kHz

M_Clk

F1

I

OCXO or TCXO local crystal oscillator input

VC_TTL

F12

I

VCXO TTL input

VC_PPECL

F11

I

VCXO PPECL input

VC_NPECL

E11

I

VCXO NPECL input

VC_Sel

D11

I

Selects the VCXO output signal electrical format, 0: PECL, 1: TTL

DACclk

B12

O

DAC Serial Bus Interface: CLK

DACdin

C12

O

DAC Serial Bus Interface: Din

DACld

D12

O

DAC Serial Bus Interface: CS/LD

E2scl

D1

O

EEPROM interface: SCL

E2sda

D2

I/O

EEPROM interface: SDA

E2wp

E2

O

EEPROM interface: WP

MNC

G1, G4,

Mandatory no-connect - must be left floating

L10,

M11, M12

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