BD3823FV_05 Datasheet, PDF (1/9 Pages) Rohm – NTSC-PAL Audio I/O Interface for Recording

TECHNICAL NOTE
Video / Audio Interfaces for TV and DVD Recorders
NTSC-PAL Audio I/O
Interface for Recording
BD3823FV
ƔDescription
BD3823FV is a low-noise (3.2ҏμVrms), low distortion (0.0015%), 5ch selector, incorporating a resistor-ladder type
volume.
Because of a wide power supply voltage range (7V to 14.5V), BD3823FV can meet a wide input voltage (to 4.5 Vms), and high S/N
can be achieved. In addition, the built-in volume does not add any distortion ratio characteristics, even when the attenution is varied,
and is applicable for high-quality audio systems.
ƔFeatures
1) A resistor-ladder type volume circuit is with a low distortion ratio (0.0015% with volume set to –6dB) and low noise (3.2 ȝVrms with
volume set to -6dB).
2) By grouping sound input terminals with output terminals, the PCB layout is reduced.
3) Small package SSOP - B20 achieves good crosstalk characteristicss (-110 dB).
4) The use of Bi-CMOS process enables low current consumption and energy saving design.
Because of low current consumption, BD3823FV has the advantage in quality over the scaling down of the internal regulators and
heat controls.
ƔApplications
DVD recorders
ƔAbsolute maximum rating (Ta=25°C)
Parameter
Symbol
Limits
Unit
Applied Voltage
VCC
15.0
V
SCL, SDA
7.0
Input voltage
VIN
VCC+0.3̻GND-0.3
V
Power Dissipation
Pd
810 ^*1
mW
Operating Temperature
Topr
-40䌾+85 ^*2
°C
Storage Temperature
Tastg
-55Ì»+150
°C
*1 Reduced by 6.5 mW/qC at 25qC or higher.
Thermal resistance Tja = 154 (°C/W), when Rohm standard board is mounted.
Rohm standard board: Size: 70͙70͙1.6 (mm³)
Material: FR4 glass-epoxy substrate (copper foil area: not more than 3%).
*2 As long as voltage stays within operating voltage range, certain circuit operation is guaranteed in
the operating temperature range.
Allowable power loss conditions are related to temperature, to which care must be taken.
In addition though the standard value of its electrical characteristics cannot be guaranteed under
the conditions other than those specified, basic functions are maintained.
ƔOperating range (Basic operation at Ta=25ͨ)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power supply voltage ^*3
VCC
7.0
12.0
14.5
V
*3 As long as temperature and operating voltage meet specifications
In addition, though the standard value of its electrical characteristics cannot be guaranteed under
the conditions other than those specified, basic functions are maintained.
Ver.B Oct.2005
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