BH76906GU_09_技术文档

Compact Video Driver Series for DSCs and Portable Devices

Ultra-compact Waferlevel

Chip Size Packeage

Output Capacitor-less

Single Output Video Drivers

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

No. 09064EAT01

●Description

Due to a built-in charge pump circuit, this video driver does not require the large capacity tantalum capacitor at the video

output pin that is essential in conventional video drivers. Features such as a built-in LPF that has bands suited to mobile

equipment, current consumption of 0 μA at standby, and low voltage operation from as low as 2.5 V make it optimal for

digital still cameras, mobile phones, and other equipment in which high density mounting is demanded.

●Features

1) WLCSP ultra-compact package (1.6 mm x 1.6 mm x 0.75 mm)

2) Improved noise characteristics over BH768xxFVM series

3) Four video driver amplifier gains in lineup: 6 dB, 9 dB, 12 dB, 16.5 dB

4) Large output video driver of maximum output voltage 5.2 Vpp. Ample operation margin for supporting even low

voltage operation

5) Output coupling capacitor not needed, contributing to compact design

6) Built-in standby function and circuit current of 0 μA (typ) at standby

7) Clear image playback made possible by built-in 8^th-order 4.5 MHz LPF

8) Due to use of bias input format, supports not only video signals but also chroma signals and RGB signals

9) Due to built-in output pin shunt switch, video output pin can be used as video input pin (BH76706GU)

●Applications

Mobile phone, digital still camera, digital video camera, hand-held game, portable media player

●Line up matrix

Recommended

Input Level

Product Name

Video Driver Amplifier Gain

Video Output Pin Shunt Function

BH76906GU

BH76909GU

BH76912GU

BH76916GU

BH76706GU

6dB

9dB

1Vpp

0.7Vpp

0.5Vpp

0.3Vpp

1Vpp

―

○

12dB

16.5dB

6dB

●Absolute Maximum Ratings

(Ta = 25 °C)

Parameter

Symbol

Vcc

Rating

3.55

Unit

V

Supply voltage

Power dissipation

Pd

580

mW

℃

Operating temperature range

Storage temperature range

Topr

Tstg

-40～+85

-55～+125

℃

＊ When mounted on a 50 mm×58 mm×1.6 mm glass epoxy board, reduce by 5.8mW/°C above Ta=+25°C.

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2009.03 - Rev.A

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Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

●Operating Range

Parameter

Symbol

Vcc

Min.

2.5

Typ.

3.0

Max.

3.45

Unit

V

Supply voltage

●Electrical Characteristics

[Unless otherwise specified, Typ. : Ta = 25 °C, VCC = 3V]

Typical Values

BH76906 BH76909 BH76912 BH76916 BH76706

Parameter

Circuit current 1-1

Circuit current 1-2

Symbol

I_CC1-1

Unit

mA

Measurement Conditions

GU

15.0

In active mode (No signal)

In active mode

(Outputting NTSC color bar

signal)

In standby mode

In input mode (Applying B3 =

1.5 V)

I_CC1-2

17.0

0.0

mA

Circuit current 2

Circuit current 3

I_CC2

I_CC3

μA

－

100

Standby switch input current

High Level

Standby switch switching voltage

High Level

Standby switch switching voltage

Low Level

Standby switch outflow current

High Level

Standby switch outflow current

Middle Level

Standby switch outflow current

Low Level

I_thH1

V_thH1

V_thL1

I_thH2

I_thM2

I_thL2

45

μA

V

Applying B3 = 3.0 V

Active mode

1.2V min

－

0.45Vmax

V

Standby mode

0

8

μA

Applying B3 = 3.0 V

Applying B3 = 1.5 V

Applying B3 = 0 V

23

－

VCC

-0.2

(MIN.)

Mode switching voltage

High Level

V_thH2

V

Standby mode

Mode switching voltage

Middle Level

Mode switching voltage

low Level

VCC/2

(TYP.)

V_thM2

V_thL2

V

Input mode

0.2

(MAX.)

Active mode

Voltage gain

G_V

Vomv

G_f1

G_f2

G_f3

6.0

9.0

12.0

5.2

16.5

6.0

dB

Vpp

dB

Vo=100kHz, 1.0Vpp

f=10kHz,THD=1%

f=4.5MHz/100KHz

f=8.0MHz/100KHz

f=18MHz/100KHz

f=23.5MHz/100KHz

Vo=1.0Vp-p

Maximum output level

Frequency characteristic 1

Frequency characteristic 2

Frequency characteristic 3

Frequency characteristic 4

-0.2

-1.5

-26

-44

-0.2

-1.4

-28

-48

G_f4

Differential gain

D_G

D_P

0.5

1.0

%

Inputting standard staircase

Signal

Vo=1.0Vp-p

Differential phase

deg Inputting standard staircase

signal

100 kHz～6MHz band

Inputting 100％ white video signal

Y signal to noise ratio

C AM signal to noise ratio

C PM signal to noise ratio

Current able to flow into output pin

Output DC offset

SN_Y

+74

+77

+73

+76

+70

+75

+65

30

+70

+75

+74

+77

dB

100～500 kHz band

dB

SN_CA

Inputting 100％ chroma video signal

100～500 kHz band

dB

SN_CP

lextin

Voff

Inputting 100％ chroma video signal

Applying 4.5 V to output pin

through 150 Ω

With no signal

Voff = (Vout pin voltage) ÷ 2

mA

±50max

mV

Measure inflowing current when

applying A3 = 1 V

Input impedance

Rin

150

kΩ

Output pin shunt switch

on resistance

Ron

－

3

Ω

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2009.03 - Rev.A

2/16

Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

●Test Circuit Diagram

^AA

A

0.01u

10u

(VCC)

10u

VCC

0.01u

(VCC)

VCC

A2

C_PLUS

A1

C_PLUS

A1

VIN

A3

VIN

A3

0.1u

A

IN

CHARGE

PUMP

IN

CHARGE

PUMP

50Ω

1.0uF

150k

STBY

B3

OUT

LPF

6dB

B1

A

B3

A

C_MINUS

100Ω

SW2

6/9/12/16.5dB

V

NVCC

C1

VOUT

C3

NVCC

C1

VOUT

C3

SW1

NVCC

V

75Ω

V

C2 GND

GND

C2

75Ω

1.0uF

V

75Ω

(a) BH76906/09/12/16GU

(b) BH76706GU

Fig. 1

※

A test circuit is a circuit for shipment inspection and differs from an application circuit example.

●Block Diagram

VCC

A2

C_PLUS

A1

VIN

A3

C_PLUS

A1

VIN

A3

IN

CHARGE

PUMP

IN

CHARGE

150k

PUMP

150k

STBY

B3

OUT

LPF

6dB

B1

B3

C_MINUS

SW2

6/9/12/16.5dB

NVCC

C1

NVCC

C1

VOUT

C3

VOUT

C3

NVCC

SW1

NVCC

GND

C2

GND

C2

(b) BH76706GU

(a) BH76906/09/12/16GU

Fig. 2

●Operation Logic

BH769xxGU

STBY Pin Logic

Operating Mode

H

L

Active

Standby

OPEN

BH76706GU

STBY Pin Logic

Operating Mode

Standby

SW1

OFF

ON

SW2

OFF

ON

H

M

L

Input (Record)

Active (Playback)

OFF

※Use of the BH76706GU with the STBY pin OPEN is inappropriate

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2009.03 - Rev.A

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Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

●Pin Descriptions

Name

DC

Voltage

Ball

A1

Pin Internal Equivalent Circuit Diagram

Functional Description

VCC

C_PLUS

Flying capacitor “+” pin

+VCC

↑↓

0V

C_PLUS

See functional descriptions of 7pin,

8pin

C1

GND

NVCC

A2

A3

VCC

VIN

VCC

0V

VCC pin

VCC

Video signal input pin

VIN

3.9k

4 .1k

3.9k

4 .1k

100

150k

1μF

VIN

150K

Suitable input signals include

composite video signals,

NV

chroma signals, R.G.B. signals

BH769xxGU

VCC

ACTIVE/STANBY switching pin

Pin Voltage

MODE

50K

STBY

1.2 V～VCC

ACTIVE

( H )

250K

200K

0 V～0.45 V

STANBY

( L )

GND

VCC

to

0V

vcc

BH76706GU

B3

STBY

100K

vcc

MODE switching pin

Pin Voltage

MODE

200K

2.8 V～VCC

STANBY

GND

vcc

( H )

STBY

1.3 V～1.7 V

GND (Record)

(M)

200K

0 V～0.2 V

ACTIVE

(L)

(Playback)

GND

NVCC

VCC

Video signal output pin

VOUT

C3

0V

75Ω

NVCC

BH76706GU only

GND

1K

VCC

C2

GND

GND pin

GND

0V

NVCC

Note 1) DC voltages in the figure are those when VCC ＝ 3.0 V. Moreover, these values are reference values which are

not guaranteed.

Note 2) Numeric values in the figure are settings which do not guarantee ratings.

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2009.03 - Rev.A

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Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

Flying capacitor “-“ pin (8pin)

VCC

GND

C1

-VCC

(-2.75 V)

C1

NVCC

VCC

C_MINUS

C2

0V

GND

VCC

C2

0V

↑↓

-VCC

C_MINUS

B1

NVC

NVCC

NVC

Negative voltage pin (7pin)

(-2.75 V)

Note 1) DC voltages in the figure are those when VCC ＝ 3.0 V. Moreover, these values are reference values which are

not guaranteed.

Note 2) Numeric values in the figure are settings which do not guarantee ratings.

●Description of Operation

1) Principles of output coupling capacitorless video drivers

Single-supply amplifier

Dual-supply amplifier

Output capacitor not required since

VCC

Output capacitor required since DC

voltage is occurring at output pin

VCC

DC voltage does not occur at output

75Ω

1000μF

75Ω

-VCC

Fig.4

1/2 VCC bias

Fig.3

For an amplifier operated from a single power supply (single-supply), since the operating point has a potential of

approximately 1/2 Vcc, a coupling capacitor is required for preventing direct current in the output. Moreover, since the

load resistance is 150 ꢀ (75 ꢀ + 75 ꢀ) for the video driver, the capacity of the coupling capacitor must be on the order of

1000 μF if you take into account the low band passband. (Fig.3)

For an amplifier operated from dual power supplies (+ supply), since the operating point can be at GND level, a coupling

capacitor for preventing output of direct current is not needed.

Moreover, since a coupling capacitor is not needed, in principle, there is no lowering of the low band characteristic at the

output stage. (Fig.4)

2) Occurrence of negative voltage due to charge pump circuit

A charge pump, as shown in Fig. 5, consists of a pair of switches (SW1, SW2) and a pair of capacitors (flying capacitor,

anchor capacitor). Switching the pair of switches as shown in Fig. 5 causes a negative voltage to occur by shifting the

charge in the flying capacitor to the anchor capacitor as in a bucket relay.

In this IC, by applying a voltage of +3 V, a negative voltage of approximately -2.8 V is obtained.

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2009.03 - Rev.A

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Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

Vcc +3V

Charge current

SW1

SW2

+

－

Vcc occurs

-

－

SW1

SW2

Anchor

Capacitor

Charge current

Flying capacitor

Anchor Capacitor

+

Flying capacitor

Vcc +3V

Charge shifting mode

Charging mode

+

－

+

-Vcc

occurs

－

Fig.5 Principles of Charge Pump Circuit

3) Configuration of BH769xxGU and BH76706GU

As shown in Fig. 6, a BH769xxGU or BH76706GU is a dual-supply amplifier and charge pump circuit integrated in one IC.

Accordingly, while there is +3 V single-supply operation, since a dual-supply operation amplifier is used, an output

coupling capacitor is not needed.

VCC

Dual-supply amplifier

1μF

75Ω

AMP

75Ω

Although single-supply,

output capacitor is not needed.

1-chip integration

Charge pump

VCC

-VCC

Charge pump

1μF

Fig.6 Configuration Diagram of BH769xxGU or BH76706GU

4) Input pin format and sag characteristic

While a BH769xxGU or BH76706GU is a low voltage operation video driver, since it has a large dynamic range of

approximately 5.2 Vpp, a resistance termination method that is compatible regardless of signal form (termination by 150

kꢀ) is used, and not a clamp method that is an input method exclusively for video signals.

Therefore, since a BH769xxGU or BH76706GU operates normally even if there is no synchronization signal in the input

signal, it is compatible with not only normal video signals but also chroma signals and R.G.B. signals and has a wide

application range.

Moreover, concerning sag (lowering of low band frequency) that occurs at the input pin and becomes a problem for the

resistance termination method, since the input termination resistor is a high 150 kꢀ, even if it is combined with a small

capacity input capacitor, a sag characteristic that is not a problem in actual use is obtained.

In evaluating the sag characteristic, it is recommended that you use an H-bar signal in which sag readily stands out. (Fig.

8 to Fig. 10)

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2009.03 - Rev.A

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Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

Sag is determined

by input capacitor

and input resistor

Input capacitor and input impedance cutoff frequency

is the same as when output capacitor in generic 75

ꢀ driver is made 1000 μF.

only.

1μF

150k

1 μF x 150 kꢀ = 1000 μF x 150 ꢀ

75Ω+75Ω=150Ω

(Input pin time constant) (Output pin time constant)

Sag occurs

Fig. 7

a) Video signal without sag (TG-7/1 output, H-bar)

TV screen output image of

H-bar signal

Fig. 8

b)

BH769xxGU or BH76706GU output (Input = 1.0 μF, TG-7/1 output, H-bar)

Monitor

1μF

75Ω

TG-7/1

BH769xxGU・BH76706GU

Fig. 9

Nearly identical sag

c) 1000 μF + 150 ꢀ sag waveform (TG-7/1 output, H-bar)

Monitor

75Ω

1000μF

TG-7/1

Fig. 10

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2009.03 - Rev.A

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Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

●Application Circuit Example

At playback (Active mode)

Recording (Input mode) BH76706GU only

2.5～3.45V

Vcc

2.5～3.45V

C4=3.3uF

Vcc

C4=3.3uF

A2

C_PLUS

A1

C3=1.0uF

VIDEO IN

C3=1.0uF

VIDEO IN

C_PLUS

A1

VIN

A3

VIN

A3

CHARGE

PUMP

CHARGE

PUMP

C1=1.0uF

150k

STBY

B3

STBY

LPF

B1

C_MINUS

B3

B1

C_MINUS

SW2

SW1

6dB

Video

monitor

6/9/12/16.5dB

SW1

NVCC

C1

NVCC

C1

75Ω

Ｒ2＝75Ω

NVCC

C2

NVCC

C2

C3

VOUT

C2=1.0uF

CIRCUIT

CURREN

GND

VOUT

GND

VIDEO IN

VIDEO OUT

＊SW1 and SW2 are built-in BH76706GU only

See page 3/16 for STBY pin logic in each mode

Fig.11

※

We are confident in recommending the above application circuit example, but we ask that

you carefully check not just the static characteristics but also transient characteristics of this

circuit before using it.

●Caution on use

1. Wiring from the decoupling capacitor C4 to the IC should be kept as short as possible.

Moreover, this capacitor's capacitance value may have ripple effects on the IC, and may affect the S-N ratio for signals, so

we recommend using as large a decoupling capacitor as possible. (Recommended C4: 3.3 µF, B characteristics, 6.3 V

or higher maximum voltage)

Make mount board patterns follow the layout example shown on page 10 as closely as possible.

2. Capacitors to use

In view of the temperature characteristics, etc., we recommend a ceramic capacitor with B characteristics.

3. The NVCC (C1 pin) terminal generates a voltage that is used within the IC, so it should never be connected to a load

unless absolutely necessary. Moreover, this capacitor (C2) has a large capacitance value but very little negative voltage

ripple.

(Recommended C2: 1.0 μF, B characteristic, 6.3 V or higher maximum voltage)

4. Capacitors C1 and C4 should be placed as close as possible to the IC. If the wiring to the capacitor is too long, it can

lead to intrusion of switching noise. (Recommended C1: 1.0 µF, B characteristics, 6.3 V or higher maximum voltage)

5. The HPF consists of input coupling capacitor C3 and 150 kꢀ of internal input impedance.

Be sure to check for video signal sag before determining the C3 value.

The cut-off frequency fc can be calculated using the following formula.

fc = 1/(2π×C3×150kΩ)

(Recommended C3: 1.0 μF, B characteristic, 6.3 V or higher maximum voltage)

6. The output resistor R2 should be placed close to the IC.

7. If the IC is mounted in the wrong direction, there is a risk of damage due to problems such as inverting VCC and GND.

Be careful when mounting it.

8. A large current transition occurs in the power supply pin when the charge pump circuit is switched. If this affects other

ICs (via the power supply line), insert a resistor (approximately 10 ꢀ) in the VCC line to improve the power supply's ripple

effects. Although inserting a 10 ꢀ resistor lowers the voltage by about 0.2 V, this IC has a wide margin for low-voltage

operation, so dynamic range problems or other problems should not occur. (See Figures 12 to 14.)

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2009.03 - Rev.A

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Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

1. Current ripple due to charge pump

circuit affects power supply Vcc pin

Vcc

Vcc pin

2. Current ripple affects

DAC or other

1uF

3.3uF

V_OUT

V

IN

1uF

75

Ω

DAC

or

VIDEO

AMP

Other

75

Ω

-Vcc

Chrarge Pump

1uF

Fig.12 Effects of Charge Pump Circuit Current Ripple on External Circuit

1) Decoupling capacitor only

Waveform of current between

power supply and capacitor (A)

10 mA/div

Vcc

Waveform of current between

capacitor and IC (B)

10 mA/div

A

B

A

Vcc

Fig.13

2) Decoupling capacitor + 10 ꢀ resistor

Waveform of current between

power supply and capacitor (A)

10 mA/div

2) Decoupling capacitor + 10 ꢀ resistor

Waveform of current between

resistor and capacitor (B)

10 mA/div

Vcc

Waveform of current between

capacitor and IC (C)

10 mA/div

10

Ω

A

B

A

C

Vcc

Fig.14

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2009.03 - Rev.A

9/16

Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

●Evaluation Board Pattern Diagram (Double-sided, 2 layers)

Layer 1 wiring + Silkscreen legend

Layer 2 wiring

Solder pattern

Fig.15

Parts List

Symbol Function

Recommended Value Remarks

C1

C2

C3

C4

R1

R2

Flying capacitor

1μF

B characteristic recommended

Tank capacitor

Input coupling capacitor

Decoupling capacitor

Input termination resistor

Output resistor

B characteristic recommended

3.3μF

75Ω

B characteristic recommended

Needed when connected to video signal measurement set

75Ω

―

Not needed when connected to TV or video signal

measurement set

R3

Output termination resistor

75Ω

Input connector

BNC

Output connector

RCA (Pin jack)

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2009.03 - Rev.A

10/16

Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

●Reference Data

BH76906GU

VCC=3V

Ta=25℃

BH76906GU

Ta=25℃

25

20

15

10

5

0.4

0.3

0.2

0.1

0

30

25

20

15

10

5

-0.1

0

2

2.5

3

3.5

4

-80

-40

0

40

80

120

0

1

2

3

4

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

POWER SUPPLY VOLTAGE [V]

Fig. 16 Circuit Current vs Supply

Voltage

Fig. 18 Standby Circuit Current

vs Supply Voltage

Fig. 17 Circuit Current

vs Ambient Temperature

BH76906GU

BH76706GU

VCC=3V

Ta=25℃

200

150

100

50

0.4

0.3

0.2

0.1

0

200

150

100

50

-0.1

0

-80

-40

0

40

80

120

-80

-40

0

40

80

120

2

2.5

3

3.5

4

TEMPERATURE [℃]

POWER SUPPLY VOLTAGE

[V]

TEMPERATURE [℃]

Fig. 19 Standby Circuit Current

vs Ambient Temperature

Fig. 20 GND Mode Circuit Current

vs Supply Voltage

BH76906GU

Ta=25℃

BH76906GU

VCC=3V

VCC=3V Ta=25℃

10

5

0

5

0

-10

-20

-30

-40

-50

-60

-70

-80

-5

-10

-15

-10

-15

2

2.5

3

3.5

4

1.E+06

1.E+07

1.E+08

-80

-40

0

40

80

120

FREQUENCY [Hz]

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

Fig. 24 Frequency Characteristic

Fig. 22 VOUT Pin Output DC Offset

vs Supply Voltage

Fig. 23 VOUT Pin Output DC Offset

vs Ambient Temperature

BH76906GU

VCC=3V

BH76906GU

Ta=25℃

BH76706GU

VCC=3V Ta=25℃

6.2

6.1

6

10

0

6.1

6

-10

-20

-30

-40

-50

-60

-70

-80

5.9

5.8

5.9

5.8

2

2.5

3

3.5

4

-80

-40

0

40

80

120

1.E+06

1.E+07

FREQUENCY [Hz]

1.E+08

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

Fig. 25 Frequency Characteristic

Fig. 27 Voltage Gainvs Ambient Temperature

Fig. 26 Voltage Gain vs Supply Voltage

11/16

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2009.03 - Rev.A

Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

VCC=3V

Ta=25℃

BH76906GU

Ta=25℃

BH76906GU

0.4

-1

-2

-3

-4

-5

f=4.5MHz/100kHz

0.2

f=8MHz/100kHz

0

-0.2

-0.4

-0.2

-0.4

2

2.5

3

3.5

4

2

2.5

3

3.5

4

-80

-40

0

40

80

120

POWER SUPPLY VOLTAGE [V]

TEMPARATURE [℃]

POWER SUPPLY VOLTAGE

[V]

Fig. 30 Frequency Characteristic 2

vs Supply Voltage

Fig. 28 Frequency Characteristic 1

vs Supply Voltage

Fig. 29 Frequency Characteristic 1

vs Ambient Temperature

Ta=25℃

BH76906GU

VCC=3V

BH76906GU

VCC=3V

-1

-2

-3

-4

-5

f=18MHz/100kHz

-20

-25

-30

-35

-20

f=18MHz/100kHz

-25

f=8MHz/100kHz

-30

-35

2

2.5

3

3.5

4

-80

-40

0

40

80

120

-80

-40

0

40

80

120

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

Fig.32 Frequency Characteristic 3

vs Supply Voltage

Fig. 31 Frequency Characteristic 2

vs Ambient Temperature

Ta=25℃

BH76906GU

VCC=3V

Ta=25℃

BH76906GU

7

6

5

4

3

-35

-40

-45

-35

-40

-45

-50

f=23.5MHz/100k

Hz

f=23.5MHz/100k

Hz

-50

2

2.5

3

3.5

4

-80

-40

0

40

80

120

2

2.5

3

3.5

4

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

Fig. 35 Frequency Characteristic 4

vs Ambient Temperature

Fig. 34 Frequency Characteristic4

vs Supply Voltage

VCC=3V

Ta=25℃

BH76906GU

VCC=3V

3

2

6

5.8

5.6

5.4

5.2

5

1

6dB

9dB

12dB

16.5dB

0

-1

-2

-3

-80

-40

0

40

80

120

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

INPUT DC VOLTAGE [V]

TEMPARATURE [℃]

Fig. 38 DC I/O Characteristic

12/16

Fig. 37 Max. Output Level vs Ambient Temperature

www.rohm.com

2009.03 - Rev.A

Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

VCC=3V

BH76906GU

Ta=25℃

230

225

220

215

210

205

230

225

220

215

210

205

200

2

2.5

3

3.5

4

-80

-40

0

40

80

120

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

Fig. 40 Charge Pump Oscillation Frequency

vs Ambient Temperature

Fig. 39 Charge Pump Oscillation Frequency

vs Supply Voltage

Ta=25℃

BH76906GU

VCC=3V Ta=25℃

-1

-1.5

-2

-1.0

-1.5

-2.0

-2.5

-3.0

-2.5

-3

-3.5

-4

2

2.5

3

3.5

4

0.0

10.0

20.0

30.0

40.0

POWER SUPPLY VOLTAGE [V]

LOAD CURRENT [mA]

Fig. 41 Charge Pump Output Voltage

vs Supply Voltage

Fig. 42 Charge Pump Load Regulation

BH76912GU

VCC=3V

Ta=25℃

1.2

1.1

1

1.2

1.1

1

0.9

0.8

0.9

0.8

2

2.5

3

3.5

4

-80

-40

0

40

80

120

TEMPERATURE [℃]

POWER SUPPLY VOLTAGE [V]

Fig. 43 Differential Phase

vs Supply Voltage

VCC=3V

Ta=25℃

BH76912GU

0.8

0.6

0.4

0.2

0

0.8

0.6

0.4

0.2

0

2

2.5

3

3.5

4

-80

-40

0

40

80

120

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

Fig. 45 Differential Gain

vs Supply Voltage

Fig. 46 Differential Gain

vs Ambient Temperature

www.rohm.com

2009.03 - Rev.A

13/16

Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

Ta=25℃

BH76906GU

VCC=3V

79

78.5

78

79

78.5

78

77.5

77

77.5

77

-80

-40

0

40

80

120

2

2.5

3

3.5

4

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

Fig. 47 Y S/N vs Supply Voltage

Fig.48 Y S/N vs Ambient Temperature

VCC=3V

BH76906GU

Ta=25℃

BH76906GU

80

78

76

74

72

70

80

78

76

74

72

70

-80

-40

0

40

80

120

2

2.5

3

3.5

4

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

Fig. 49 C AM S/N vs Supply Voltage

Fig. 50 C AM S/N vs Ambient Temperature

Ta=25℃

BH76906GU

VCC=3V

70

68

66

64

62

60

70

68

66

64

62

60

-80

-40

0

40

80

120

2

2.5

3

3.5

4

TEMPERATURE [℃]

POWER SUPPLY VOLTAGE [V]

Fig. 52 C PM S/N vs Ambient Temperature

Fig. 51 C PM S/N vs Supply Voltage

Ta=25℃

BH76906GU

VCC=3V

BH76906GU

180

165

150

135

120

165

150

135

120

2

2.5

3

3.5

4

-80

-40

0

40

80

120

POWER SUPPLY VOLTAGE [V]

TEMPERATURE [℃]

Fig. 53 Input Impedance vs Supply Voltage

Fig. 54 Input Impedance vs Ambient Temperature

www.rohm.com

2009.03 - Rev.A

14/16

Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

BH76906GU

BH76706GU

VCC=3V Ta=25℃

20

16

12

8

20

16

12

8

4

0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

0

0.5

1

1.5

2

2.5

3

CTL TERMINAL VOLTAGE [V]

Fig. 56 Control Pin Characteristic

Fig. 55 Control Pin Characteristic

BH76706GU

VCC=3V

Ta=25℃

5

4

3

2

1

5

4

3

2

1

-80

-40

0

40

80

120

2

2.5

3

3.5

4

POWER SUPPLY VOLTAGE [V]

Fig. 57 Output Pin Shunt Switch On Resistance

vs Supply Voltage

Fig. 58 Output Pin Shunt Switch On Resistance

vs Ambient Temperature

●

Performing separate electrostatic damage countermeasures

When adding an externally attached electrostatic countermeasure element to the output pin, connect a varistor in the

position shown in Fig. 59 (if connected directly to the output pin, the IC could oscillate depending on the capacity of the

varistor). For this IC, since the output waveform is GND-referenced and swings positive and negative, a normal Zener

diode cannot be used.

ESD or surge

VOUT

75Ω

Fig.59 Using Externally Attached Varistor

www.rohm.com

2009.03 - Rev.A

15/16

Technical Note

BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU

●Selection of order type

B H 7 6 9 0 6 G U

E 2

Tape and Reel information

Part. No.

BH76906GU

BH76909GU

BH76912GU

BH76916GU

BH76706GU

VCSP85H1

Tape

Embossed carrier tape

Quantity 3000pcs

Direction

of feed

E2

(The direction is the 1pin of product is at the upper left when you hold

reel on the left hand and you pull out the tape on the right hand)

1234

Direction of feed

1pin

Reel

(Unit:mm)

※When you order , please order in times the amount of package quantity.

www.rohm.com

2009.03 - Rev.A

16/16

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.

If you intend to export or ship overseas any Product or technology speciﬁed herein that may

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

obtain a license or permit under the Law.

Thank you for your accessing to ROHM product informations.

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

ROHM Customer Support System

http://www.rohm.com/contact/

www.rohm.com

R0039

A


型号：	BH76906GU_09
厂家：	ROHM
描述：	Ultra-compact Waferlevel Chip Size Packeage Output Capacitor-less Single Output Video Drivers 超小型Waferlevel芯片尺寸PACKEAGE输出电容的单路输出视频驱动程序驱动
文件：	总17页 (文件大小：514K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

BH76906GU_09 [ROHM]

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