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LVDS Interface ICs

4bit LVDS Driver

BU90LV047A

●Description

LVDS Interface IC of ROHM "Serializer" "Deserializer" operate from 8MHz to 150MHz wide clock range, and

number of bits range is from 35 to 70. Data is transmitted seven times (7X) stream and reduce cable number

by 3(1/3) or less. The ROHM's LVDS has low swing mode to be able to expect further low EMI.

Driver and Receiver of 4 bits operate to 250MHz. It can be used for a variety of purposes, home appliances

such as LCD-TV, business machines such as decoders, instruments, and medical equipment.

●Features

■>500 Mbps (250 MHz) switching rates

■Flow-through pinout simplifies PCB layout.

■300 ps typical differential skew

■400 ps maximum differential skew

■2.8 ns maximum propagation delay

■3.3V power supply design

■±200mV and ±350mV Selectable differential signaling

■Interoperable with existing 5V LVDS receivers

■High impedance on LVDS outputs on power down

■Conforms to TIA/EIA-644 LVDS Standard

■Industrial operating temperature range (-40℃ to +85℃)

●Applications

Car Navigation System

Copier

Digital TV (Signal System)

FA equipment

Medical equipment

Vending machine, Ticket vending machine

●Precaution

■This chip is not designed to protect from radioactivity.

■This document may be used as strategic technical data

which subjects to COCOM regulations.

Jun.2008

●Block Diagram

SL

DOUT1+

DOUT1-

D1

D2

D3

D4

DIN1

DOUT2+

DOUT2-

DIN2

DIN3

DIN4

DOUT3+

DOUT3-

DOUT4+

DOUT4-

EN

Figure 1. Block Diagram

2 / 12

●SSOP-B16 Package Outline and Specification

Product No.

5.0±0.2

16

9

LV47A

Lot No.

1PIN MARK

1

8

0.15±0.1

0.65

0.22±0.1

0.10

（UNIT:ｍｍ）

Figure 2. SSOP-B16 Package Outline and Specification

3 / 12

●Pin Configuration

EN

DIN1

DIN2

VCC

GND

DIN3

DIN4

SL

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

DOUT1-

DOUT1+

DOUT2+

DOUT2-

DOUT3-

DOUT3+

DOUT4+

DOUT4-

Figure 3. Pin Diagram (Top View)

4 / 12

●Pin Description

Table 1 : Pin Description

Pin Name

DIN

Pin No.

Type

Descriptions

LVCMOS In

Driver input pin, LVCMOS compatible

2, 3, 6, 7

Non-inverting driver output pin,

LVDS levels

LVDS Out

DOUT+

DOUT-

10, 11, 14, 15

9, 12, 13, 16

Inverting driver output pin, LVDS levels

Swing Level select pin : When SL is high, the driver is

reduce swing level (200mV). When SL is low or open,

the driver is normal swing level (350mV).

LVCMOS In

SL

EN

8

1

Driver enable pin: When EN is low or open, the driver

is disabled. When EN is high, the driver is enabled.

Power

GND

Power supply pin, 3.3V±0.3V

VCC

4

5

Ground pin

GND

●Function Description

INPUT

OUTPUTS

Swing Level

350mV

EN

H

SL

DIN

L

DOUT+

DOUT-

L

H

L

H

L

H

L

L or Open

H

L

H

200mV

H

All other combinations of

EN, SL inputs

X

Z

5 / 12

●Absolute Maximum Ratings

Value

Item

Symbol

Unit

Min.

Max.

Supply voltage

Input voltage

VCC

VIN

-0.3

-55

4.0

V

VCC+0.3

125

Output voltage

VOUT

Tstg

V

Storage temperature range

℃

●Package Power

Package

PD(mW)

DERATING(mW/℃) ※1

400

4.0

SSOP-B16

450^*2

4.5^*2

※1 At temperature Ta > 25℃

※2 Package power when mounting on the PCB board.

The size of PCB board

:70×70×1.6（mm³）

The material of PCB board :The FR4 glass epoxy board.(3% or less copper foil area)

●Recommended Operating Conditions

Value

Item

Symbol

Unit

Condition

Min.

3.0

Typ.

3.3

Max.

3.6

Supply voltage

VCC

V

Operating temperature range Topr

-40

-

85

℃

6 / 12

●DC Characteristics

Conditions

Max

Symbol

Parameter

Min

250

-

Typ

350

Units

mV

V

V_OD1Differential Output Voltage

V_OH１Output High Voltage

V_OL1Output Low Voltage

V_OD2Differential Output Voltage

V_OH2Output High Voltage

V_OL2Output Low Voltage

450

1.6

-

SL= GND, R_L= 100Ω (Figure 4)

1.42

1.08

200

0.90

120

-

V

300

1.50

-

mV

V

SL= V_CC, R_L= 100Ω (Figure 4)

1.35

1.15

D_OUT-

D_OUT+

1.00

V

Change in Magnitude of V_ODfor

△V_OD

SL = V_CCor GND,

R_L= 100Ω (Figure 4)

-

1.125

-

1

1.25

1

35

1.375

25

|mV|

V

Complementary Output States

V_OSOffset Voltage

Change in Magnitude of Vos for

△V_OS

|mV|

Complementary Output States

V_IHInput High Voltage

D_IN,

SL

V_CC×0.8

GND

-

V_CC

V

V_IL

I_I

Input Low Voltage

Input Current

V_CC×0.2

V_IN= 0V or V_CC,

EN

-10

-1.5

-

+10

-

μA

V

Other Input = V_CCor GND

V_CLInput Clamp Voltage

I_CL= -18mA

-0.8

ENABLED,

D_OUT-

D_OUT+

I_OS

Output Short Circuit Current

D_IN= V_CC, D_OUT+= 0V or

-

-5.4

-9.0

mA

D_IN= GND, D_OUT-= 0V

Differential Output Short Circuit

Current

I_OSD

ENABLED, V_OD= 0V

-

-20

-

-5.4

±1

20

-9.0

+20

-

mA

μA

mA

V

_OUT= 0V or 3.6V,

_CC=0V or Open

I_OFFPower-off Leakage

No Load Supply Current Drivers

I_CC

I_CCL

I_CCZ

D_IN= V_CCor GND

V_CC

Enabled

Load Supply Current Drivers

Enabled

R_L= 100Ω All Channels,

_IN= V_CCor GND (all outputs)

-

20

-

D

No Load Supply Current Drivers

Disabled

D_IN= V_CCor GND,

-

3

-

EN = GND, SL = GND

7 / 12

●Switching Characteristics

V_CC= +3.3V ±0.3V, T_opr= -40℃ to +85℃

Symbol

t_PHLD

Parameter

Conditions

Min

0.5

Typ

1.7

Max Units

Differential Propagation Delay High to Low

Differential Propagation Delay Low to High

R_L= 100Ω, C_L= 15pF

(Figure 5 and Figure 6)

2.8

ns

t_PLHD

Differential Pulse Skew |t_PHLD– t_PLHD

|

t_SKD1

0

0.3

0.4

ns

Channel-to-Channel Skew

Differential Part to Part Skew

Rise Time

t_SKD2

t_SKD3

t_SKD4

t_TLH

t_THL

t_PHZ

t_PLZ

t_PZH

t_PZL

f_Max

0

0.4

-

0.5

1.0

1.2

1.5

5

ns

0

-

ns

-

0.5

2

ns

Fall Time

-

ns

Disable Time High to Z

Disable Time Low to Z

Enable Time Z to High

Enable Time Z to Low

Maximum Operating Frequency

R_L= 100Ω, C_L= 15pF

(Figure 7 and Figure8)

-

ns

-

2

5

ns

-

3

7

ns

-

3

7

ns

250

-

MHz

DOUT+

RL/2

Vcc

DIN

VOS

V_OD

D

GND

S1

RL/2

Driver ENABLED

DOUT-

Figure 4. Driver VOD and VOS Test Circuit

8 / 12

CL

DOUT+

DOUT-

DIN

Generator

D

RL

50Ω

Driver ENABLED

CL

Figure 5. Driver Propagation Delay and Transition Time Test Circuit

3V

DIN

1.5V

0V

ｔPLHD

ｔPHLD

V^OH

VOL

DOUT-

D^OUT+

0V（Differential)

0V

80％

0V

80％

0V

V^DIFF

VDIFF = DOUT+ - DOUT-

20％

ｔTLH

ｔTHL

Figure 6. Driver Propagation Delay and Transition Time Waveforms

CL

DOUT+

50O

VCC

DIN

D

+1.2V

GND

50O

DOUT-

CL

EN

Generator

50O

047

A

1/ 4BU90LV

Figure 7. Driver 3-STATE Delay Test Circuit

9 / 12

Parameter Measurement Information (Continued)

3V

0V

EN

WHEN SL = L or Open

1.5V

ｔPHZ

ｔPZH

V^OH

DOUT+ WHEN DIN = Vcc

D^OUT- WHEN DIN = GND

50％

1.2V

D^OUT+ WHEN DIN = GND

D^OUT- WHEN DIN = Vcc

50％

V^OL

ｔPLZ

ｔPZL

Figure 8. Driver 3-STATE Delay Waveform

Typical Application

ENABLE

1/4 BU90LV048

DATA

OUTPU

T

DATA

INPUT

100O

RT

1/4 BU90LV047A

Figure 9. Point-to-Point Application

10 / 12

Typical Application (Continued)

3V

0V

DIN

VOH

DOUT-

SINGLE-ENDED

｜VOD｜

VOS (1.25V typical)

VOL

D^OUT+

+VOD

-VOD

D^OUT+ - DOUT-

DIFFERENTIAL OUTPUT

+V_SS

0V(DIFF.)

0V

Figure 10. Driver Output Levels

11 / 12

型号:	BU90LV047A-E2
是否Rohs认证：	符合
生命周期：	Active
包装说明：	LSSOP,
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8542.39.00.01
Factory Lead Time：	11 weeks
风险等级：	1.69
差分输出：	YES
驱动器位数：	4
输入特性：	STANDARD
接口集成电路类型：	LINE DRIVER
接口标准：	EIA-644; TIA-644
JESD-30 代码：	R-PDSO-G16
长度：	5 mm
功能数量：	4
端子数量：	16
最高工作温度：	85 °C
最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY
封装代码：	LSSOP
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260
座面最大高度：	1.25 mm
最大供电电压：	3.6 V
最小供电电压：	3 V
标称供电电压：	3.3 V
表面贴装：	YES
温度等级：	INDUSTRIAL
端子形式：	GULL WING
端子节距：	0.65 mm
端子位置：	DUAL
处于峰值回流温度下的最长时间：	10
最大传输延迟：	2.8 ns
宽度：	4.4 mm
Base Number Matches：	1

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