BH7645KS2 [ROHM]

Silicon Monolithic Integrated Circuit; 硅单片集成电路


型号：	BH7645KS2
厂家：	ROHM
描述：	Silicon Monolithic Integrated Circuit 硅单片集成电路消费电路商用集成电路
文件：	总5页 (文件大小：136K)
中文：	中文翻译
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1/4

Structure

Silicon Monolithic Integrated Circuit

Product name

Wide Bandwidth Audio-Video SW for TV

Type

BH7645KS2

Outer dimensions

Block diagram

Features

Fig.1 SQFP-T52

Fig.2

1) Video inputs selector : 2-inputs component, 2-inputs Y/C, and 2-inputs composite

2) Component inputs : Correspond to D5 standard

3) Built-in LPF selector(6.75MHz/13.5MHz/30MHz/Through)

4) Built-in Video MUTE function

5) Audio inputs selector : 6-inputs (Lch, Rch)

6) Built-in Power-on MUTE function

7) I²C-BUS control

8) Optional Slave address modifications(90H/92H)

9) I²C-BUS is compatible with fast mode of Version2.0, but not compatible with Hs mode

10) Built-in detector 3ch(S_SW1/S_SW2/S_SW3)

11) Built-in output port 2ch(PORT1_OUT/PORT2_OUT)

○Absolute Maximum Ratings (Ta=+25℃)

Parameter

Symbol

Vcc1

Ratings

Unit

Supply voltage1 (2pin, 29pin, 33pin, 39pin, 44pin)

Supply voltage2 (12pin)

Power dissipation

Vcc2

8.8

1300 *1

VIDEO PART, LOGIC PART

Input voltage range

AUDIO PART

V_IN1

V_IN2

Tstg

0 ～ Vcc1+0.2

0 ～ Vcc2+0.2

-55 ～ +125

Storage temperature range

℃

*1 When mounting on a 70mm×70mm×1.6mm PCB board

Reduced by 13mW/℃ at Ta = +25℃ or higher

○Operating Range

Parameter

Symbol

Vcc1

Vcc2

Topr

Range

Unit

Supply voltage1 (2pin, 29pin, 33pin, 39pin, 44pin)

Supply voltage2 (12pin)

+4.5 ～ +5.5

+7.5 ～ +8.5

-40 ～ +85

Operating temperature range

℃

* This product is not designed for protection against radioactive rays.

* Note the power supply sequence.

REV. A

2/4

○Electrical characteristics （Unless otherwise specified, Ta= 25℃, Vcc1=5.0V, Vcc2=8.0V）

Limits

Item

Symbol

Unit

Conditions

Min.

Typ.

Max.

[VIDEO PART]

Circuit current

Voltage gain

ICC_V

GV_V

－

-0.5

-1.5

0.0

-30

0.0

-30

0.0

-18

0.5

1.0

-20

1.0

-20

1.0

-10

ｄB

No signal

Vin=1.0Vpp, f=100kHz

GF_1-1V

GF_1-2V

GF_2-1V

GF_2-2V

GF_3-1V

GF_3-2V

Vin=1.0Vpp, f=6.75MHz/100kHz

Vin=1.0Vpp, f=27MHz/100kHz

Vin=1.0Vpp, f=13.5MHz/100kHz

Vin=1.0Vpp, f=54MHz/100kHz

Vin=1.0Vpp, f=30MHz/100kHz

Vin=1.0Vpp, f=74MHz/100kHz

Frequency characteristics1

[f=6.75MHz LPF MODE]

Frequency characteristics 2

[f=13.5MHz LPF MODE]

Frequency characteristics 3

[f=30MHz LPF MODE]

Frequency characteristics 4

[f=THROUGH MODE]

Maximum output level

SW crosstalk

-1.5

GF_4-1V

-3.0

-0.5

2.0

Vin=1.0Vpp, f=54MHz/100kHz

VOM_V

CTSW_V

CTCH_V

MT_V

2.6

－

3.0

-60

Vpp

f=10kHz, THD=1.0%

Vin=1.0Vpp, f=10MHz

-50

Channel crosstalk

MUTE attenuation

Bias input terminal Input impedance

ZIN_V

100

150

－

kΩ

[AUDIO PART] (at Gain=0dB)

Circuit current

ICC_A

GV0_A

GV6_A

GF_A

－

-0.5

5.5

0.0

0.5

6.5

3.0

0.1

No signal

Vin=1.0Vrms, f=1kHz

Vin=1.0Vrms, f=50kHz/1kHz

Vin=1.0Vrms, f=1kHz ※1

Maximum value of distortion<0.3%

f=1kHz ※1

0dB

Voltage gain

6dB

6.0

Frequency characteristics

Total harmonic distortion

-3.0

－

0.0

THD_A

0.03

0dB

Maximum output level

6dB

VOM0_A

VOM6_A

2.0

2.4

－

Vrms

Maximum value of distortion<0.3%

f=1kHz ※1

Channel crosstalk

SW crosstalk

CTCH_A

CTSW_A

MT_A

－

-100

-85

Vin=2.0Vrms, f=1kHz ※1

※1

MUTE attenuation

Remain noise

PSRR

－

N_A

－

uVrms

PSRR_A

ZIN_A

－

-45

-38

－

※2

Input impedance

[LOGIC PART etc.]

VIL

100

150

kΩ

Vin1L

Vin1H

IINI2C

VinL

2.0

-10

－

1.0

Vcc1

Low Level input voltage

High Level input voltage

[SCL]

[SDA]

VIH

Input bias current

SDA output voltage

VIL

－

100

－

150

0.4

I_L=3.0mA(sink)

Vin2L

Vin2H

ZIN_ADR

Vin2L

Vin2H

ZIN_SSW

1.0

Low Level input voltage

High Level input voltage

[ADR]

VIH

2.0

Vcc1

130

1.0

Input impedance

VIL

kΩ

Low Level input voltage

High Level input voltage

Pull up resistance

[S_SW1]

[S_SW2]

[S_SW3]

VIH

2.0

100

Vcc1

－

Input impedance

PORT output

voltage

kΩ

V_PL

I_PH

－

0.5

5.0

I_L=2.5mA

[PORT1_OUT]

[PORT2_OUT]

Leak current

Vcc2=8.0V

※1 400HzHPF + 30kHzLPF ON

※2 Vin=0.3Vpp, f=100Hz at VCC, 30kHzLPF ON

REV. A

3/4

○Physical dimensions

○Block diagram

PORT1 OUT

GND AU

I2C LOGIC

：テレビ用Hd 対応AVスイ

Clamp

CYin1

R6in

L6in

Gain_SEL

0/6dB

ADDRESS

CY_SW

P-on

Mute

LPF1

Clamp

CYin2

Vcc5V Video IN2

PBin1

R5in

L5in

R4in

L4in

R3in

L3in

R2in

L2in

R1in

L1in

6.75M/13.5M/

30M/Through

Mute

P-on

Mute

0/6dB

BH7645KS2

PB_SW

PR_SW

LPF2

Bias

6.75M/13.5M/

Audio_SW

Mute

30M/Through

名： BH7645KS2

TEST1

LPF3

6.75M/13.5M/

30M/Through

Bias

PBin2

Mute

C_SW

Y_SW

Lot No.

6in-1out

SW3

SW2

S SW

Bias

長： 1) ビデオ入力セレクタ：

PRin1

ーネント入力2 系統、Y/C 入力2 系

Mute

Bias

SW1

Fig.1 SQFP-T52 ( UNIT:mm )

PRin2 52

Fig.2 Block diagram

Pin number

Pin name

Y1in1

Pin number

Pin name

L1in

Pin number

Pin name

Pin number

Pin name

Rout

Lout

PORT1 OUT

CYin1

Vcc5V Video IN1

CVBS1

R1in

L2in

Vcc5V AU

DGND

ADDRESS

CYin2

Vref Video

Y1in2

R2in

L3in

SCL

Vcc5V Video IN2

PBin1

GND

R3in

SDA

CVBS2

L4in

DVcc5V

PR/Cout1

GND RGBout

PBout1

GND

TEST1

GND Video IN

C1in1

R4in

PBin2

L5in

S SW3

Vref AU

R5in

S SW2

C1in2

L6in

PRin1

Vcc8V AU

PORT2 OUT

R6in

CY/Y/CVBSout1

Vcc5V RGBout

S SW1

GND AU

PRin2

○Pin number and Pin name

REV. A

4/4

○Cautions for use

(1) Absolute maximum ratings

If the absolute maximum ratings for applied voltage and/or operation temperature are exceeded, LSI damage may result.

Therefore, do not apply voltage or use in a temperature that exceeds these absolute maximum ratings.

If it is possible that absolute maximum ratings will be exceeded, use a physical safety device such as a fuse and make

sure that no conditions that might exceed the absolute maximum ratings will be applied to the LSI IC.

(2) Power supply line

Design PCB pattern to provide low impedance for the wiring between the power supply and the GND lines.

In this regard, for the digital block power supply and the analog block power supply, even though these power supplies

has the same level of potential, separate the power supply pattern for the digital block from that for the analog block,

thus suppressing the diffraction of digital noises to the analog block power supply resulting from impedance common to

the wiring patterns. For the GND line, give consideration to design the patterns in a similar manner.

Furthermore, for all power supply terminals to ICs, mount a capacitor between the power supply and the GND terminal.

At the same time, in order to use an electrolytic capacitor, thoroughly check to be sure the characteristics of the

capacitor to be used present no problem including the occurrence of capacity dropout at a low temperature, thus

determining the constant.

(3) GND potential

Regardless of the operation mode, the voltage of the GND pin should be at least the minimum voltage.

Actually check whether or not the voltage at each pin, including transient phenomena, is less than the GND pin voltage.

(4) Thermal design

The thermal design should be done using an ample margin that takes into consideration the allowable dissipation under

actual use conditions.

(5) Shorts between pins and mounting errors

When mounting LSI ICs onto the circuit board, make sure each LSI's orientation and position is correct.

The ICs may become damaged if they are not mounted correctly when the power is turned on.

Similarly, damage may also result if a short occurs, such as when a foreign object is positioned between pins in an IC,

or between a pin and a power supply or GND connection.

(6) Operation in strong electromagnetic field

When used within a strong electromagnetic field, evaluate carefully to avoid the risk of operation faults.

(7) Power supply sequence

[Power-up sequence]

Supply voltage1 (Vcc1 : 2pin, 29pin, 33pin, 39pin, 44pin) must be powered up before or at the same time as the

supply voltage2 (Vcc2 : 12pin).

[Power-down sequence]

Supply voltage2 (Vcc2 : 12pin) must be powered up before or at the same time as the supply voltage1(Vcc1 : 2pin,

29pin, 33pin, 39pin, 44pin).

REV. A

Notice

N o t e s

No copying or reproduction of this document, in part or in whole, is permitted without the

consent of ROHM Co.,Ltd.

The content speciﬁed herein is subject to change for improvement without notice.

The content speciﬁed herein is for the purpose of introducing ROHM's products (hereinafter

"Products"). If you wish to use any such Product, please be sure to refer to the speciﬁcations,

which can be obtained from ROHM upon request.

Examples of application circuits, circuit constants and any other information contained herein

illustrate the standard usage and operations of the Products. The peripheral conditions must

be taken into account when designing circuits for mass production.

Great care was taken in ensuring the accuracy of the information speciﬁed in this document.

However, should you incur any damage arising from any inaccuracy or misprint of such

information, ROHM shall bear no responsibility for such damage.

The technical information speciﬁed herein is intended only to show the typical functions of and

examples of application circuits for the Products. ROHM does not grant you, explicitly or

implicitly, any license to use or exercise intellectual property or other rights held by ROHM and

other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the

use of such technical information.

The Products speciﬁed in this document are intended to be used with general-use electronic

equipment or devices (such as audio visual equipment, ofﬁce-automation equipment, commu-

nication devices, electronic appliances and amusement devices).

The Products speciﬁed in this document are not designed to be radiation tolerant.

While ROHM always makes efforts to enhance the quality and reliability of its Products, a

Product may fail or malfunction for a variety of reasons.

Please be sure to implement in your equipment using the Products safety measures to guard

against the possibility of physical injury, ﬁre or any other damage caused in the event of the

failure of any Product, such as derating, redundancy, ﬁre control and fail-safe designs. ROHM

shall bear no responsibility whatsoever for your use of any Product outside of the prescribed

scope or not in accordance with the instruction manual.

The Products are not designed or manufactured to be used with any equipment, device or

system which requires an extremely high level of reliability the failure or malfunction of which

may result in a direct threat to human life or create a risk of human injury (such as a medical

instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-

controller or other safety device). ROHM shall bear no responsibility in any way for use of any

of the Products for the above special purposes. If a Product is intended to be used for any

such special purpose, please contact a ROHM sales representative before purchasing.

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be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to

obtain a license or permit under the Law.

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More detail product informations and catalogs are available, please contact us.

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R1010

BH7645KS2 [ROHM]

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