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SY100E446: Description4-BIT PARALLEL-TO-SERIAL CONVERTER; File Size83KB，9 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com

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SY100E446 Overview

4-BIT PARALLEL-TO-SERIAL CONVERTER

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Micrel, Inc.

4-BIT PARALLEL-TO-SERIAL

CONVERTER

SY10E446

SY100E446

SY10E446

SY100E446

FEATURES

On-chip clock

4 and

Extended 100E V

range of –4.2V to –5.5V

1.6Gb/s typical data rate capability

Differential clock and serial inputs

VBB output for single-ended use

Asynchronous data synchronization

DESCRIPTION

The SY10/100E446 are integrated 4-bit parallel-to-

serial data converters. These devices are designed to

operate for NRZ data rates of up to a minimum of 1.3Gb/

s. The chips generate a divide-by-4 and a divide-by-8

clock for both 4-bit conversion and a two-chip 8-bit

conversion function. The conversion sequence was

chosen to convert the parallel data into a serial stream

from bit D

to D

. A serial input is provided to cascade

two E446 devices for 8-bit conversion applications.

The SYNC input will asynchronously reset the internal

clock circuitry. This pin allows the user to reset the internal

clock conversion unit and, thus, select the start of the

conversion process.

The MODE input is used to select the conversion mode

of the device. With the MODE input LOW (or open) the

device will function as a 4-bit converter. When the mode

input is driven HIGH, the internal load clock will change

on every eighth clock cycle, thus allowing for an 8-bit

conversion scheme using two E446s. When cascaded in

an 8-bit conversion scheme, the devices will not operate

at the 1.3Gb/s data rate of a single device. Refer to the

applications section of this data sheet for more information

on cascading the E446.

For lower data rate applications, a V

reference

voltage is supplied for single-ended inputs. When

operating at clock rates above 500MHz, differential input

signals are recommended. For single-ended inputs, the

pin is tied to the inverting differential input and

bypassed via a 0.01µF capacitor. The V

provides the

switching reference for the input differential amplifier. The

can also be used to AC couple an input signal.

Mode select to expand to 8 bits

Internal 75K

Ω

input pulldown resistors

Fully compatible with Motorola MC10E/100E446

Available in 28-pin PLCC package

PIN NAMES

SIN, SIN

– D

SOUT, SOUT

CLK, CLK

CL/4, CL/4

CL/8, CL/8

MODE

SYNC

CCO

Function

Differential Serial Data Input

Parallel Data Input

Differential Serial Data Output

Differential Clock Input

Differential 4 Clock Output

Differential 8 Clock Output

Conversion Mode, 4-bit/8-bit

Conversion Synchronizing Input

to Output

M9999-032206

hbwhelp@micrel.com or (408) 955-1690

Rev.: F

Amendment: /0

Issue Date: March 2006

SY100E446 Related Products

	SY100E446	SY10E446	SY10E446JC	SY10E446_06	SY10E446JCTR	SY10E446JZTR	SY100E446JZTR	SY100E446JCTR	SY100E446JC
Description	4-BIT PARALLEL-TO-SERIAL CONVERTER	4-BIT PARALLEL-TO-SERIAL CONVERTER	4-BIT PARALLEL-TO-SERIAL CONVERTER	4-BIT PARALLEL-TO-SERIAL CONVERTER	4-BIT PARALLEL-TO-SERIAL CONVERTER	4-BIT PARALLEL-TO-SERIAL CONVERTER	4-BIT PARALLEL-TO-SERIAL CONVERTER	4-BIT PARALLEL-TO-SERIAL CONVERTER	4-BIT PARALLEL-TO-SERIAL CONVERTER
Is it Rohs certified?	-	-	incompatible	-	incompatible	conform to	conform to	incompatible	incompatible
Maker	-	-	Microchip	-	Microchip	Microchip	Microchip	Microchip	Microchip
package instruction	-	-	PLASTIC, LCC-28	-	PLASTIC, LCC-28	QCCJ,	QCCJ,	PLASTIC, LCC-28	PLASTIC, LCC-28
Reach Compliance Code	-	-	_compli	-	_compli	compli	compli	_compli	_compli
Other features	-	-	ON-CHIP CLOCK DIVIDE BY 4 & 8; DIFFERENTIAL CLOCK & SERIAL INPUT & OUTPUT	-	ON-CHIP CLOCK DIVIDE BY 4 & 8; DIFFERENTIAL CLOCK & SERIAL INPUT & OUTPUT	SISO OPERATION ALSO AVAILABLE	SISO OPERATION ALSO AVAILABLE	SISO OPERATION ALSO AVAILABLE	SISO OPERATION ALSO AVAILABLE
Counting direction	-	-	RIGHT	-	RIGHT	RIGHT	RIGHT	RIGHT	RIGHT
series	-	-	10E	-	10E	10E	100E	100E	100E
JESD-30 code	-	-	S-PQCC-J28	-	S-PQCC-J28	S-PQCC-J28	S-PQCC-J28	S-PQCC-J28	S-PQCC-J28
JESD-609 code	-	-	e0	-	e0	e3	e3	e0	e0
Logic integrated circuit type	-	-	PARALLEL IN SERIAL OUT	-	PARALLEL IN SERIAL OUT	PARALLEL IN SERIAL OUT	PARALLEL IN SERIAL OUT	PARALLEL IN SERIAL OUT	PARALLEL IN SERIAL OUT
Number of digits	-	-	4	-	4	4	4	4	4
Number of functions	-	-	1	-	1	1	1	1	1
Number of terminals	-	-	28	-	28	28	28	28	28
Maximum operating temperature	-	-	85 °C	-	85 °C	85 °C	85 °C	85 °C	85 °C
Output polarity	-	-	TRUE	-	TRUE	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY
Package body material	-	-	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
Package shape	-	-	SQUARE	-	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE
Package form	-	-	CHIP CARRIER	-	CHIP CARRIER	CHIP CARRIER	CHIP CARRIER	CHIP CARRIER	CHIP CARRIER
propagation delay (tpd)	-	-	1.7 ns	-	1.7 ns	1.7 ns	1.7 ns	1.7 ns	1.7 ns
Certification status	-	-	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
surface mount	-	-	YES	-	YES	YES	YES	YES	YES
technology	-	-	ECL	-	ECL	ECL	ECL	ECL	ECL
Temperature level	-	-	OTHER	-	OTHER	OTHER	OTHER	OTHER	OTHER
Terminal surface	-	-	Tin/Lead (Sn/Pb)	-	Tin/Lead (Sn/Pb)	Matte Tin (Sn)	Matte Tin (Sn)	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)
Terminal form	-	-	J BEND	-	J BEND	J BEND	J BEND	J BEND	J BEND
Terminal location	-	-	QUAD	-	QUAD	QUAD	QUAD	QUAD	QUAD
Trigger type	-	-	NEGATIVE EDGE	-	NEGATIVE EDGE	NEGATIVE EDGE	NEGATIVE EDGE	NEGATIVE EDGE	NEGATIVE EDGE
minfmax	-	-	1300 MHz	-	1300 MHz	1300 MHz	1300 MHz	1300 MHz	1300 MHz

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Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

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