ROHM BH76912GU

Compact Video Driver Series for DSCs and Portable Devices
Ultra-compact Waferlevel
Chip Size Packeage
Output Capacitor-less
Single Output Video Drivers
No. 09064EAT01
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
●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
th
7) Clear image playback made possible by built-in 8 -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
Product Name
Video Driver Amplifier Gain
Recommended
Input Level
BH76906GU
6dB
1Vpp
BH76909GU
9dB
0.7Vpp
BH76912GU
12dB
0.5Vpp
BH76916GU
16.5dB
0.3Vpp
BH76706GU
6dB
1Vpp
●Absolute Maximum Ratings
Video Output Pin Shunt Function
―
○
(Ta = 25 °C)
Parameter
Symbol
Rating
Unit
Supply voltage
Vcc
3.55
V
Power dissipation
Pd
580
mW
Operating temperature range
Topr
-40～+85
℃
Storage temperature range
Tstg
-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.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/16
2009.03 - Rev.A
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
Technical Note
●Operating Range
Parameter
Symbol
Min.
Typ.
Max.
Unit
Supply voltage
Vcc
2.5
3.0
3.45
V
●Electrical Characteristics
Parameter
Symbol
BH76906
GU
[Unless otherwise specified, Typ. : Ta = 25 °C, VCC = 3V]
Typical Values
Unit
Measurement Conditions
BH76909 BH76912 BH76916 BH76706
GU
GU
GU
GU
Circuit current 1-1
ICC1-1
15.0
mA
Circuit current 1-2
ICC1-2
17.0
mA
Circuit current 2
ICC2
0.0
μA
Circuit current 3
ICC3
－
IthH1
45
VthH1
1.2V min
VthL1
0.45Vmax
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
Mode switching voltage
High Level
Mode switching voltage
Middle Level
Mode switching voltage
low Level
Voltage gain
Maximum output level
Frequency characteristic 1
Frequency characteristic 2
Frequency characteristic 3
Frequency characteristic 4
100
－
μA
In active mode (No signal)
In active mode
(Outputting NTSC color bar
signal)
In standby mode
In input mode (Applying B3 =
1.5 V)
μA
Applying B3 = 3.0 V
V
Active mode
V
Standby mode
IthH2
0
μA
Applying B3 = 3.0 V
IthM2
8
μA
Applying B3 = 1.5 V
23
μA
Applying B3 = 0 V
V
Standby mode
V
Input mode
V
Active mode
IthL2
－
VthM2
VCC
-0.2
(MIN.)
VCC/2
(TYP.)
VthL2
0.2
(MAX.)
VthH2
GV
Vomv
Gf1
Gf2
Gf3
Gf4
6.0
9.0
12.0
5.2
16.5
-0.2
-1.5
-26
-44
6.0
-0.2
-1.4
-28
-48
dB
Vpp
dB
dB
dB
dB
Differential gain
DG
0.5
%
Differential phase
DP
1.0
deg
Y signal to noise ratio
SNY
+74
+73
+70
+70
+74
dB
C AM signal to noise ratio
SNCA
+77
+76
+75
+75
+77
dB
C PM signal to noise ratio
SNCP
+65
dB
Current able to flow into output pin
lextin
30
mA
Output DC offset
Voff
±50max
mV
Input impedance
Rin
150
kΩ
Output pin shunt switch
on resistance
Ron
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
－
2/16
3
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
Inputting standard staircase
Signal
Vo=1.0Vp-p
Inputting standard staircase
signal
100 kHz～6MHz band
Inputting 100％ white video signal
100～500 kHz band
Inputting 100％ chroma video signal
100～500 kHz band
Inputting 100％ chroma video signal
Applying 4.5 V to output pin
through 150 Ω
With no signal
Voff = (Vout pin voltage) ÷ 2
Measure inflowing current when
applying A3 = 1 V
Ω
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
●Test Circuit Diagram
A
A
A
0.01u
10u
(VCC)
VCC
A2
C_PLUS
C_PLUS
VIN
A3
A1
A2
0.1u
B1
1.0uF
LPF
B3
A
50Ω
150k
PUMP
STBY
STBY
OUT
0.1u
CHARGE
50Ω
150k
PUMP
VIN
A3
IN
CHARGE
1.0uF
(VCC)
A1
A
IN
0.01u
10u
VCC
OUT
B1
A
C_MINUS
LPF
B3
A
C_MINUS
100Ω
SW2
6dB
6/9/12/16.5dB
NVCC
V
NVCC
C1
VOUT
NVCC
C3
C1
C2
1.0uF
V
GND
75Ω
V
V
75Ω
SW1
NVCC
C2 GND
1.0uF
(a) BH76906/09/12/16GU
V
V
VOUT
C3
V
75Ω
(b) BH76706GU
Fig. 1
A test circuit is a circuit for shipment inspection and differs from an application circuit example.
※
●Block Diagram
VCC
VCC
A2
C_PLUS
A3
A1
A2
C_PLUS
VIN
VIN
A3
A1
IN
IN
CHARGE
CHARGE
150k
PUMP
LPF
B1
150k
PUMP
STBY
STBY
OUT
B3
OUT
B1
C_MINUS
C_MINUS
LPF
SW2
6dB
6/9/12/16.5dB
NVCC
NVCC
VOUT
NVCC
C3
C1
C2
B3
SW1
NVCC
VOUT
C3
C1
GND
C2 GND
(b) BH76706GU
(a) BH76906/09/12/16GU
Fig. 2
●Operation Logic
BH769xxGU
STBY Pin Logic
Operating Mode
H
Active
L
Standby
OPEN
BH76706GU
STBY Pin Logic
Operating Mode
SW1
SW2
Standby
OFF
OFF
H
M
Input (Record)
ON
OFF
L
Active (Playback)
OFF
ON
※Use of the BH76706GU with the STBY pin OPEN is inappropriate
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
3/16
2009.03 - Rev.A
V
75Ω
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
●Pin Descriptions
Pin
Ball
Name
C_PLUS
A1
Pin Internal Equivalent Circuit Diagram
DC
Voltage
VCC
VCC
Functional Description
Flying capacitor “+” pin
+VCC
↑↓
0V
C_PLUS
C1
See functional descriptions of 7pin,
8pin
GND
GND
NVCC
A2
VCC
VCC
VCC
VCC pin
Video signal input pin
VIN
0V
A3
VIN
100
VIN
43.9k
. 1k
43.9k
. 1k
Suitable input signals include
composite video signals,
chroma signals, R.G.B. signals
150K
NV
NVCC
BH769xxGU
VCC
VCC
STBY
150k
1μF
ACTIVE/STANBY switching pin
Pin Voltage
MODE
1.2 V～VCC
ACTIVE
(H)
0 V～0.45 V
STANBY
(L)
50K
250K
200K
GND
GND
B3
STBY
vcc
BH76706GU
100K
vcc
VCC
to
0V
200K
GND
STBY
vcc
200K
GND
GND
MODE switching pin
Pin Voltage
MODE
2.8 V～VCC
(H)
STANBY
1.3 V～1.7 V
(M)
GND (Record)
0 V～0.2 V
(L)
ACTIVE
(Playback)
NVCC
VCC
Video signal output pin
VCC
C3
VOUT
VOUT
0V
VOUT
75Ω
NVCC
NVCC
75Ω
BH76706GU only
GND
1K
VCC
C2
GND
0V
GND
GND pin
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.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
4/16
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
Flying capacitor “-“ pin (8pin)
VCC
GND
C1
NVCC
VCC
C_MINUS
C2
C1
-VCC
(-2.75 V)
0V
GND
VCC
VCC
B1
C2
C_MINUS
0V
↑↓
-VCC
(-2.75 V)
NVCC
NVC
NVC
Negative voltage pin (7pin)
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
VCC
Dual-supply amplifier
Output capacitor required since DC
voltage is occurring at output pin
VCC
75Ω
1000μF
75Ω
Output capacitor not required since
DC voltage does not occur at output
pin
75Ω
75Ω
-VCC
1/2 VCC bias
Fig.3
Fig.4
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 Ω (75 Ω + 75 Ω) 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.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
5/16
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
Vcc +3V
Vcc +3V
Charge current
Charge current
SW1
+
+
－
SW2
－
-Vcc occurs
SW1
SW2
Anchor
Capacitor
Flying capacitor
Anchor Capacitor
+
Flying capacitor
Vcc +3V Charging mode
+
－
Charge current
Charge shifting 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
1μF
Dual-supply amplifier
75Ω
AMP
150k
75Ω
1-chip integration
Although single-supply,
output capacitor is not needed.
VCC
-VCC
Charge pump
1μF
1μF
Charge pump
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
kΩ) 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 kΩ, 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)
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
6/16
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
Input capacitor and input impedance cutoff frequency
is the same as when output capacitor in generic 75
Ω driver is made 1000 μF.
1 μF x 150 kΩ = 1000 μF x 150 Ω
(Input pin time constant) (Output pin time constant)
Sag is determined
by input capacitor
and input resistor
only.
1μF
150k
Sag occurs
Fig. 7
a)
75Ω+75Ω=150Ω
Video signal without sag (TG-7/1 output, H-bar)
TV screen output image of
H-bar signal
Fig. 8
BH769xxGU or BH76706GU output (Input = 1.0 μF, TG-7/1 output, H-bar)
b)
Monitor
TG-7/1
75Ω
75Ω
150k
1μF
BH769xxGU・BH76706GU
Fig. 9
Nearly identical sag
c)
1000 μF + 150 Ω sag waveform (TG-7/1 output, H-bar)
Monitor
75Ω
1000μF
75Ω
TG-7/1
Fig. 10
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
7/16
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
●Application Circuit Example
At playback (Active mode)
Recording (Input mode) BH76706GU only
2.5～3.45V
2.5～3.45V
C4=3.3uF
Vcc
A2
C_PLUS
VIN
A3
A1
VIDEO IN
STBY
B3
LPF
B1
C_MINUS
Video
monitor
C2=1.0uF
NVCC
C1
SW1
NVCC
C2 GND
C3
STBY
B3
LPF
SW2
6dB
SW1
NVCC
Ｒ2＝75Ω
VOUT
150k
PUMP
B1
C_MINUS
SW2
6/9/12/16.5dB
VIDEO IN
CHARGE
C1=1.0uF
150k
PUMP
C3=1.0uF
VIN
A3
A1
CHARGE
C1=1.0uF
C4=3.3uF
Vcc
A2
C_PLUS
C3=1.0uF
CIRCUIT
CURREN
C2=1.0uF
C1
NVCC
C2
C3
GND
Ｒ2＝75Ω
75Ω
VOUT
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 kΩ 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 Ω) in the VCC line to improve the power supply's ripple
effects. Although inserting a 10 Ω 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.)
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
8/16
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
1. Current ripple due to charge pump
circuit affects power supply Vcc pin
10 Ω
Vcc
Vcc pin
2. Current ripple affects
DAC or other
1uF
DAC or
1uF
3.3uF
VIN
VOUT
75Ω
VIDEO
Other
150k Ω
AMP
75Ω
-Vcc
Chrarge Pump
1uF
Fig.12 Effects of Charge Pump Circuit Current Ripple on External Circuit
1) Decoupling capacitor only
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
A
A B
Vcc
Fig.13
2) Decoupling capacitor + 10 Ω resistor
2) Decoupling capacitor + 10 Ω resistor
Waveform of current between
power supply and capacitor (A)
10 mA/div
Waveform of current between
resistor and capacitor (B)
10 mA/div
Waveform of current between
capacitor and IC (C)
10 mA/div
A
Vcc
10Ω
A
B
A
A
C
Vcc
Fig.14
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
9/16
2009.03 - Rev.A
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
Technical Note
●Evaluation Board Pattern Diagram (Double-sided, 2 layers)
Layer 1 wiring + Silkscreen legend
Layer 2 wiring
Solder pattern
Fig.15
Parts List
Symbol
C1
C2
C3
Function
Flying capacitor
Tank capacitor
Input coupling capacitor
C4
Decoupling capacitor
3.3μF
B characteristic recommended
R1
Input termination resistor
75Ω
Needed when connected to video signal measurement set
R2
Output resistor
75Ω
R3
Output termination resistor
75Ω
―
Not needed when connected to TV or video signal
measurement set
Input connector
Output connector
BNC
RCA (Pin jack)
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
Recommended Value
1μF
1μF
1μF
Remarks
B characteristic recommended
B characteristic recommended
B characteristic recommended
10/16
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
●Reference Data
BH76906GU
BH76906GU
Ta=25℃
25
20
15
10
0.4
20
15
10
5
5
0
0
1
2
3
POWER SUPPLY VOLTAGE [V]
0
40
BH76706GU
VCC=3V
80
0.1
0
0
2
BH76706GU
Ta=25℃
0
40
80
100
50
100
50
0
120
2
TEMPERATURE [℃]
BH76906GU
2.5
3
3.5
-80
4
-40
POWER SUPPLY VOLTAGE
[V]
Fig. 19 Standby Circuit Current
vs Ambient Temperature
VCC=3V
150
0
-40
4
200
150
-0.1
-80
2.5
3
3.5
POWER SUPPLY VOLTAGE [V]
Fig. 18 Standby Circuit Current
vs Supply Voltage
CIRCUIT CURRENT [μA]
0.2
0.1
120
200
CIRCUIT CURRENT [μA]
STANDBY CURRENT [uA]
-40
Fig. 17 Circuit Current
vs Ambient Temperature
0.4
0.3
0.2
TEMPERATURE [℃]
Fig. 16 Circuit Current vs Supply
Voltage
BH76906GU
0.3
-0.1
-80
4
Ta=25℃
BH76906GU
STANDBY CURRENT [uA]
CIRCUIT CURRENT [mA]
30
CIRCUIT CURRENT [mA]
VCC=3V
25
0
40
80
120
TEMPERATURE [℃]
Fig. 20 GND Mode Circuit Current
vs Supply Voltage
Ta=25℃
BH76906GU
5
BH76906GU
VCC=3V
VCC=3V
Ta=25℃
10
5
-5
-10
-15
2
2.5
3
3.5
POWER SUPPLY VOLTAGE [V]
-5
-10
-80
-40
0
40
80
TEMPERATURE [℃]
VCC=3V
Ta=25℃
-30
-40
-50
-60
-80
1.E+06
120
1.E+07
1.E+08
FREQUENCY [Hz]
Fig. 24 Frequency Characteristic
Fig. 23 VOUT Pin Output DC Offset
vs Ambient Temperature
BH76906GU
BH76706GU
-20
-70
-15
4
Fig. 22 VOUT Pin Output DC Offset
vs Supply Voltage
10
0
VOLTAGE GAIN [dB]
0
VOUT DC OFFSET [mV]
VOUT DC OFFSET [mV]
0
-10
VCC=3V
BH76906GU
Ta=25℃
6.2
6.2
6.1
6.1
VOLTAGE GAIN [dB]
VOLTAGE GAIN [dB]
-20
-30
-40
-50
-60
VOLTAGE GAIN [dB]
0
-10
6
5.9
6
5.9
-70
-80
1.E+06
5.8
5.8
1.E+07
FREQUENCY [Hz]
1.E+08
Fig. 25 Frequency Characteristic
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
2
2.5
3
3.5
POWER SUPPLY VOLTAGE [V]
4
Fig. 26 Voltage Gain vs Supply Voltage
11/16
-80
-40
0
40
80
120
TEMPERATURE [℃]
Fig. 27 Voltage Gainvs Ambient Temperature
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
Ta=25℃
BH76906GU
0
-0.2
-0.4
2
2.5
3
3.5
f=4.5MHz/100kHz
0.2
0
-0.2
-0.4
4
-80
-40
VCC=3V
f=8MHz/100kHz
-4
-5
0
40
80
Ta=25℃
2.5
3
3.5
-50
3.5
-25
-30
-35
-80
MAX OUTPUT VOLTAGE [Vpp]
-45
f=23.5MHz/100k
Hz
120
Ta=25℃
6
5
4
-40
0
40
80
120
2
2.5
3
3.5
POWER SUPPLY VOLTAGE [V]
Fig. 35 Frequency Characteristic 4
vs Ambient Temperature
VCC=3V
VCC=3V
Ta=25℃
3
OUTPUT DC VOLTAGE [V]
5.2
80
3
-50
-80
Fig. 34 Frequency Characteristic4
vs Supply Voltage
5.4
40
BH76906GU
TEMPERATURE [℃]
5.6
0
7
-40
4
5.8
-40
TEMPERATURE [℃]
VCC=3V
BH76906GU
POWER SUPPLY VOLTAGE [V]
BH76906GU
VCC=3V
Fig.32 Frequency Characteristic 3
vs Supply Voltage
FREQUENCY RESPONSE4:Gf4[dB]
f=23.5MHz/100k
Hz
4
f=18MHz/100kHz
4
-35
-45
3.5
BH76906GU
-35
Ta=25℃
-40
3
-20
POWER SUPPLY VOLTAGE [V]
BH76906GU
6
2.5
Fig. 30 Frequency Characteristic 2
vs Supply Voltage
-30
2
-35
3
-5
POWER SUPPLY VOLTAGE [V]
-25
120
Fig. 31 Frequency Characteristic 2
vs Ambient Temperature
2.5
-4
f=18MHz/100kHz
TEMPERATURE [℃]
2
-3
2
FREQUENCY RESPONSE3:Gf3[dB]
-2
-40
f=8MHz/100kHz
120
f=18MHz/100kHz
-20
-80
80
BH76906GU
-1
-3
40
Fig. 29 Frequency Characteristic 1
vs Ambient Temperature
FREQUENCY RESPONSE3:Gf3[dB]
FREQUENCY RESPONSE2:Gf2[dB]
BH76906GU
0
-2
TEMPARATURE [℃]
POWER SUPPLY VOLTAGE
[V]
Fig. 28 Frequency Characteristic 1
vs Supply Voltage
Ta=25℃
-1
FREQUENCY RESPONSE2:Gf2[dB]
f=4.5MHz/100kHz
0.2
FREQUENCY RESPONSE4:Gf4[dB]
BH76906GU
0.4
FREQUENCY RESPONSE1:Gf1[dB]
FREQUENCY RESPONSE1:Gf1[dB]
0.4
MAX OUTPUT VOLTAGE [Vpp]
VCC=3V
BH76906GU
2
1
6dB
9dB
12dB
16.5dB
0
-1
-2
-3
5
-80
-40
0
40
80
120
-1.5
TEMPARATURE [℃]
Fig. 37 Max. Output Level vs Ambient Temperature
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
-1.0
- 0.5
0.0
0.5
1.0
1.5
INPUT DC VOLTAGE [V]
Fig. 38
DC I/O Characteristic
12/16
2009.03 - Rev.A
4
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
225
220
215
210
205
200
2
2.5
3
3.5
230
225
220
215
210
205
4
-80
POWER SUPPLY VOLTAGE [V]
Ta=25℃
CHARGEPUMP OUTPUT VOLTAGE [V]
CHARGEPUMP OUTPUT VOLTAGE [V]
-1
-1.5
-2
-2.5
-3
-3.5
0
40
80
TEMPERATURE [℃]
120
BH76906GU
-1.0
VCC=3V
Ta=25℃
-1.5
-2.0
-2.5
-3.0
-4
2
2.5
3
3.5
POWER SUPPLY VOLTAGE [V]
4
0.0
BH76912GU
10.0
20.0
30.0
40.0
LOAD CURRENT [mA]
Fig. 41 Charge Pump Output Voltage
vs Supply Voltage
Fig. 42 Charge Pump Load Regulation
VCC=3V
BH76912GU
Ta=25℃
1.2
1.2
DIFFERENTIAL PHASE [Deg]
DIFFERENTIAL PHASE [Deg]
-40
Fig. 40 Charge Pump Oscillation Frequency
vs Ambient Temperature
Fig. 39 Charge Pump Oscillation Frequency
vs Supply Voltage
BH76906GU
VCC=3V
BH76906GU
Ta=25℃
CHARGEPUMP OSC FREQUENCY [KHz]
CHARGEPUMP OSC FREQUENCY [KHz]
BH76906GU
230
1.1
1
0.9
0.8
1.1
1
0.9
0.8
2
2.5
3
3.5
POWER SUPPLY VOLTAGE [V]
-80
4
-40
0
40
TEMPERATURE [℃]
80
120
Fig. 43 Differential Phase
vs Supply Voltage
Ta=25℃
BH76912GU
DIFFERENTIAL GAIN [%]
DIFFERENTIAL GAIN [%]
VCC=3V
BH76912GU
0.8
0.8
0.6
0.4
0.2
0
2
2.5
3
3.5
0.2
-40
0
40
80
120
TEMPERATURE [℃]
Fig. 45 Differential Gain
vs Supply Voltage
www.rohm.com
0.4
0
-80
4
POWER SUPPLY VOLTAGE [V]
© 2009 ROHM Co., Ltd. All rights reserved.
0.6
Fig. 46 Differential Gain
vs Ambient Temperature
13/16
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
Ta=25℃
VCC=3V
BH76906GU
79
78.5
78.5
Y S/N [dB]
Y S/N [dB]
BH76906GU
79
78
78
77.5
77.5
77
77
2
2.5
3
3.5
-80
4
-40
0
POWER SUPPLY VOLTAGE [V]
80
78
CHROMA S/N (AM) [dB]
CHROMA S/N (AM) [dB]
VCC=3V
BH76906GU
Ta=25℃
76
74
72
78
76
74
72
70
70
2
2.5
3
3.5
POWER SUPPLY VOLTAGE [V]
-80
4
Fig. 49 C AM S/N vs Supply Voltage
-40
0
40
80
TEMPERATURE [℃]
120
Fig. 50 C AM S/N vs Ambient Temperature
Ta=25℃
BH76906GU
VCC=3V
BH76906GU
70
70
68
68
CHROMA S/N (PM) [dB]
CHROMA S/N (PM) [dB]
120
Fig.48 Y S/N vs Ambient Temperature
80
66
64
62
66
64
62
60
60
2
2.5
3
3.5
-80
4
-40
40
80
120
Fig. 52 C PM S/N vs Ambient Temperature
Fig. 51 C PM S/N vs Supply Voltage
Ta=25℃
BH76906GU
0
TEMPERATURE [℃]
POWER SUPPLY VOLTAGE [V]
VCC=3V
BH76906GU
180
165
INPUT IMPEDANCE [kΩ]
INPUT IMPEDANCE [kΩ]
80
TEMPERATURE [℃]
Fig. 47 Y S/N vs Supply Voltage
BH76906GU
40
165
150
135
120
150
135
120
2
2.5
3
3.5
POWER SUPPLY VOLTAGE [V]
4
-80
www.rohm.com
0
40
80
120
TEMPERATURE [℃]
Fig. 53 Input Impedance vs Supply Voltage
© 2009 ROHM Co., Ltd. All rights reserved.
-40
Fig. 54 Input Impedance vs Ambient Temperature
14/16
2009.03 - Rev.A
Technical Note
BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
BH76906GU
BH76706GU
VCC=3V Ta=25℃
CIRCUIT CURRENT [mA]
16
CIRCUIT CURRENT [mA]
VCC=3V Ta=25℃
20
20
12
8
4
0
0.0
16
12
8
4
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5
CTL TERMINAL VOLTAGE [V]
BH76706GU
2.5
3
VCC=3V
5
4
ON RESISTANCE [Ω]
ON RESISTANCE [Ω]
2
BH76706GU
Ta=25℃
3
2
1
4
3
2
1
2
2.5
3
3.5
-80
4
POWER SUPPLY VOLTAGE [V]
-40
0
40
80
120
POWER SUPPLY VOLTAGE [V]
Fig. 57 Output Pin Shunt Switch On Resistance
vs Supply Voltage
●
1.5
Fig. 56 Control Pin Characteristic
Fig. 55 Control Pin Characteristic
5
1
CTL TERMINAL VOLTAGE [V]
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
75Ω
Fig.59 Using Externally Attached Varistor
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
15/16
2009.03 - Rev.A
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
<Dimension>
Tape
Embossed carrier tape
Quantity 3000pcs
Direction
of feed
1234
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
Reel
(Unit:mm)
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1234
1234
1pin
1234
1234
Direction of feed
※When you order , please order in times the amount of package quantity.
16/16
2009.03 - Rev.A
Notice
Notes
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, communication 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
© 2009 ROHM Co., Ltd. All rights reserved.
R0039A