Sanyo LA73074CL Monolithic linear ic video driver for dsc/cell phone Datasheet

Ordering number : ENA0910
LA73074CL
Monolithic Linear IC
Video Driver for DSC/Cell Phone
Overview
The LA73074CL is a low voltage drive (2.7V to 3.6V) video driver developed for portable appliances including digital
still cameras and cell phones. It incorporates a minus-voltage generator that allows the LA73074CL to generate its output
with the pedestal voltage set to 0V, so that no output coupling capacitor is required. This enables substantial reduction in
mounting space without concerned about V-sag.
Features
• Output coupling capacity not required
• Low-voltage drive (VCC = 2.7V to 3.6V)
• Νο V-sag
• Sextic LPF incorporated (fc = 7.5MHz)
• Current drain of 0µA in the standby mode
• Amplifier gain selectable from three options (6, 12, and 9dB) (Pin control (GND/Open/VCC))
• Output drive capable of covering maximum 75Ω output, one channel
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Symbol
Conditions
Ratings
VCC max
Pd max
Ta ≤ 80°C, *Mounted on a specified board
Unit
4.0
V
160
mW
Operating temperature
Topr
-20 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
*: Mounted on a specified board: 10mm×20mm×0.8mm, Paper phenol
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
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Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
90507 TI IM B8-8589, 8974, 20051226-S00014 No.A0910-1/6
LA73074CL
Recommended Operating Conditions at Ta = 25°C
Parameter
Symbol
Recommended Operating supply voltage
VCCSTD
Operating supply voltage range
Conditions
Ratings
VCCRANGE
Unit
3.1
V
2.7 to 3.6
V
Electrical Characteristics at Ta = 25°C, VCC = 3.1V
Parameter
Symbol
Ratings
Conditions
min
typ
Unit
max
Current Drain Block
Current dissipation 1
ICC
( VIN = White50% )
Current dissipation 2
ICC2
( Non-signal mode )
Current dissipation 3
4pin = Low
Input = White50%
4pin = Low
Input = No signal
ICC-STBY
14
22
30
mA
7
11.5
15
mA
0
5
µA
5.7
6.2
6.7
dB
11.7
12.2
12.7
dB
8.7
9.2
9.7
dB
4pin = Open (High)
( Standby mode )
Video Block
Voltage gain V6
VG-L
VIN = 1Vp-p 100% white
2pin = Low (GND)
Voltage gain V12
VG-M
VIN = 0.5Vp-p 100% white
2pin = MID (Open)
Voltage gain V9
VG-H
VIN = 710mVp-p 100% white
2pin = High (VCC)
Freq. Characteristics
Vf
f = 100kHz/5MHz
-1.5
-0.5
+0.5
dB
Differential Gain
DG
VOUT = 2Vp-p
(Modulated Ramp)
-2.0
0
-2.0
%
Differential Phase
DP
VOUT = 2Vp-p
(Modulated Ramp)
-2.0
0
-2.0
deg
-5.0
0
+5.0
µA
-5.0
0
+5.0
µA
VCC-0.5
3.6
V
GND
0.3
V
VCC-0.3
VCC
V
1.4
V
0.3
V
Output leak current at standby 1
IOUTH
Leak current when 3V is applied
to pin 9, with pin 4 at H (Standby
Mode) and pin 9 (VOUT)
Output leak current at standby 2
IOUTL
Leak current when 0.1V is
applied to pin 9, with pin 4 at H
(Standby Mode) and pin 9
(VOUT)
Control Terminal Block
Stand-by control pin H voltage
VTH-STBY-H
Stand-by control pin L voltage
VTH-STBY-L
(SET = ACTIVE MODE)
Gain selection control pin H voltage
VTH-G-H
(SET = 6dB)
Pin 2 pin voltage range at which
Amp Gain becomes 9dB.
VTH-G-M
(SET = 12dB)
Gain selection control pin L voltage
Pin 4 pin voltage range at which
the operation mode is effective.
(SET = 9dB)
Gain selection control pin M voltage
Pin 4 pin voltage range at which
ICC ≤ 5µA
(SET = STANDBY MODE)
Pin 2 pin voltage range at which
Amp Gain becomes 12dB.
VTH-G-L
Pin 2 pin voltage range at which
Amp Gain becomes 6dB.
1.0
GND
1.2
(OPEN)
No.A0910-2/6
LA73074CL
Package Dimensions
unit : mm (typ)
3334
SIDE VIEW
TOP VIEW
BOTTOM VIEW
2.3
0.05
2.8
2
2
0.6
1
1
0.3
(0.2)
0.325
0.075
0.8
(0.015)
(0.8)
SIDE VIEW
SANYO : ECSP2823-10
Pin Assignment, Pin Function Diagram and Block Diagram
(Note 1)
Position the decoupling
capacitor of VCC-GND as
near as possible to this IC.
VCC
High
9dB
2
Open 12dB
Low
AGND
6dB
AMP
75Ω
Video
Driver
10
VCC
VOUT
TDK
C1608 JB OJ 475K
← 0V
9
VOUT
GAINCTL
4.7µF
Active
Input signal)
Signal → ON
No signal → OFF
Standby → OFF
1
75Ω
LPF
from
DAC
3
1µF
VIN
8
VCCN
CLAMP
4
High
Open
Low
Standby
PSAVCTL
Active
5
GND
(Note 2)
Use the input capacity value within a range of 0.1µF
to 1µF while checking the sag condition of the output
waveform.
2.2µF
TDK
C1608 JB 1C 225K
7
Minus
Voltage
Generator
ND1
6
2.2µF
TDK
C1608 JB 1C 225K
CLKOUT
(Note 3) For these two capacities;
Temperature characteristic B rank ( ±10%)
Electrostatic tolerance K rank(±10%)
and Withstand voltage of 6.3V or more are recommended.
(Note 4) Wiring from V OUT (pin 9) to 75Ω must be as short as possible.
(Note 5)
As the minus power supply in this IC generates the clock for charge pump power supply by extracting the sink component of the input Video
signal (synchronous isolation) and by detecting its fall, the portion around the V-syncrhonization of this IC output may be reduced when the
pseudo V signal without cut-in pulse is inserted as in the case of certain analog VCR special play (search). On the contrary, there is no problem
when the pseudo V signal has the cut-in pulse. Pay due attention on this fact duri ng use.
No.A0910-3/6
LA73074CL
Pin Functions
Symbol
Voltage
1
AGND
0V
2
GAINCTL
1.2V
Description
Equivalent Circuit
Analog GND
Gain select pin
Control of Pin2
GAIN
H(VCC)
⇒
9dB
M(OPEN)
⇒
12dB
L(GND)
⇒
6dB
10
VCC
2.16V
REF
1.2V
2
5
3
VIN
1.1V
100kΩ
Pin No
BUF
0.72V
2kΩ
GND
Video input pin
(Sync-chip clamp
10
(input High-impedance))
VCC
2kΩ
GAIN SET: 6dB⇒1.0Vp-p
GAIN SET: 12dB⇒500mVp-p
GAIN SET: 9dB⇒710mVp-p
2kΩ
200Ω 200Ω
3
5
VIN
2kΩ
Active: ON
Standby: OFF
26kΩ
GND
1.1V
4
PSAVCTL
VCC
or
0V
Power save mode select pin
Control of Pin4
MODE
H(VCC)
OPEN
or
VCC±0.5V
⇒
STANDBY
L(GND)
0V to 0.3V
⇒
ACTIVE
10
VCC
50kΩ
50kΩ
50kΩ
PSAVCTL
4
5
5
GND
4kΩ
GND
0V
Continued on next page.
No.A0910-4/6
LA73074CL
Continued from preceding page.
Pin No
Symbol
Voltage
6
CLKOUT
+3.0V
Description
Equivalent Circuit
Pin : Clock output terminal
↑↓
10
V CC =3.1V
0V
VCC
3V
2V
6
CLKOUT
6pin
1V
50kΩ
50kΩ
0V
-1V
50kΩ
7pin
8pin
-2V
7
ND1
GND
5
-3V
2.4V
+0.5V
↑↓
-2.6V
Pin7 : The terminal which transmits
10
an electric charge
(-VCC)
5
VCC
GND
100kΩ
8
VCCN
0V
↑↓
Pin8 : Negative VCC
VCCN
8
-2.5V
(-VCC)
50kΩ
ND1
7
9
VOUT
0V
Video output terminal
(Push-pull output Low-impedance)
10
VCC
2Vp-p
0V
--0.6V
VOUT
9
8
VCC
500Ω
+
-
GND
5
100kΩ
10
50kΩ
Active: Low-impedance
Standby: High-impedance
1.4V
50kΩ
-VCC
2.9V
to
3.6V
No.A0910-5/6
LA73074CL
Test Circuit Diagram
VM
VM
4.7µF
IM
PSAVCTL
GAINCTL
4
2
10 VCC
VOUT
VIN
3
VCC
VM
CLAMP
LPF
AMP
Video
Driver
9
1µF
AGND
75Ω
ACTIVE
(Input signal)
Yes → ON
No → OFF
STANDBY→ OFF
1
SG
Minus Voltage
Generator
5
75Ω
M
75Ω
GND
CLKOUT
6
7
ND1
8
VCCN
2.2µF
2.2µF
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to change without notice.
PS No.A0910-6/6
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