Audio I/O. BD3823FV Datasheet

BD3823FV I/O. Datasheet pdf. Equivalent

Part BD3823FV
Description NTSC-PAL Audio I/O
Feature TECHNICAL NOTE Video / Audio Interfaces for TV and DVD Recorders NTSC-PAL Audio I/O Interface for R.
Manufacture Rohm
Total Page 9 Pages
Datasheet
Download BD3823FV Datasheet



BD3823FV
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
SCL, SDA
15.0
7.0
V
Input voltage
Power Dissipation
VIN
VCC+0.3̻GND-0.3
V
Pd
810 *1
mW
Operating Temperature
Topr
-40+85 *2
°C
Storage Temperature
Tastg
-55̻+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
!



BD3823FV
ƔElectrical characteristics
Unless otherwise specified, Ta=25ͨ, VCC=12V, f=1kHz, Vin=1Vrms, Rg=600Ԉ, RL=10kԈ, Gain selector = 0dB, Volume = 0dB,
Input terminal = Front 1, Output terminal = Out 1
Parameter
Symbol
Limits
Min. Typ. Max.
Unit
Conditions
Circuit Current upon no signal
IQ
- 2.5 10
mA VIN=0Vrms
Voltage gain
Maximum output voltage
Channel balance
Total harmonic distortion
Output noise voltage *
Residual output noise voltage *
Cross-talk between channels *
Input impedance
Maximum input voltage
Cross-talk between selectors *
Volume control range
Maximum attenuation *
Step resolution
GV
-1.5 0
1.5
VOM 3.0 3.6 -
CB -1.5 0 1.5
THD
- 0.0015 0.05
VNO
VNOR
CTC
- 3.2 16
- 2 10
- -110 -80
RIN 77 110 143
VIM
3.1 3.61)
-
CTS - -110 -80
VV -32.5 -30.5 -28.5
GV MIN
- -106 -85
GV STEP - 0.5 -
КB
Vrms
dB
%
ȝVrms
ȝVrms
dB
kȍ
Vrms
dB
dB
dB
dB
GV=20log(VOUT/VIN)
VOM at THD(VOUT)=1%
BW=400Hz-30KHz̝
CB = GV1-GV2
GV1:ch1Gain, GV2:ch2 Gain
VIN=2Vrms,Volume=-6dB
BW=400Hz-30KHz
Volume=-6dB
Rg = 0ȍ, BW=IHF-A
Volume = -͡dB
Rg = 0ȍ, BW=IHF-A
Rg = 0ȍ
BW = IHF-A
1pin-10pin terminal
VIM at THD(VOUT)=1%
BW=400Hz-30KHz
1pin-10pin terminal
Rg = 0ȍ
BW = IHF-A
CTS=20log(VOUT/VIN)
GV=20log(VOUT/VIN)
BW = IHF-A
Volume = -͡dB
GV=20log(VOUT/VIN)
BW = IHF-A
Volume=0̻-30.5dB
Attenuation set error
Maximum gain
Step resolution
GV ERR
-1.5
0
1.5
G MAX 4.5 6 7.5
G STEP
-
2
-
dB Volume=0̻-30.5dB
Gain Selector=6dB
dB VIN=500mVrms
G=20log(VOUT/VIN)
dB From 2dB to 4dB
Gain set error
G ERR
-1.5
0
1.5
dB
ͰVP-9690A (average value detection, effective value display) filter by Matsushita Communication is used for * measurement.
ͰPhase between input/output is the same.
ͰThis IC is not designed to be radiation-resistant.
1)VIM=2.5Vrms(TYP) at VCC=9V̜THD(VOUT)=1%
VIN=4.2Vrms(TYP) at VCC=14V̜THD(VOUT)=1%
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