參數(shù)資料
型號： LA72702VA
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO24
封裝： 0.225 INCH, SSOP-24
文件頁數(shù)： 4/11頁
文件大?。?/td> 153K
代理商： LA72702VA
LA72702VA
No.A0645-2/11
Operating Ranges at Ta
= 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended operating voltage
VCC
5.0
V
Allowable operating voltage range
VCC op
4.5 to 5.5
V
Caution : Please use this IC under license contract with THAT Corporation, because this IC is included dbx noise reduction system.
Electrical Characteristics at Ta
= 25°C, VDD = 5.0V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Current dissipation
ICC
No signal Inflow current at pin 19, default condition
30
40
50
mA
SIF input level
(Reference)
VILIM
fc = 4.5MHz
Deviation
MONO (300Hz, Mod = 100%, Pre-emphasis ON)
±25kHz
(80)
(90)
(100)
dB
μV
Base band input level
(Reference)
VILIMB
100% Modulation
MONO(L+R) : 530mVp-p (300Hz, Pre-emphasis ON)
SUB(L-R)
: 380mVp-p (300Hz, dbx-NR ON), Pilot : 110mVp-p
SAP
: 300mVp-p (300Hz, dbx-NR ON)
MONO output level
VOMON
fm = 1kHz, 100% Mod, 15kHz LPF
-6.5
-5.5
-4.5
dBV
MONO distortion
THDMON
fm = 1kHz, 100% Mod, 15kHz LPF
0.15
0.6
%
MONO frequency characteristics
FCM1
fm = 3kHz, 30% Mod, Ore-em. ON
* Measure ratio from fm = 1kHz level.
-2
0
2
dB
MONO S/N ratio
SNM
S = VOMON, N = 0% Mod, 15kHz LPF
55
65
dB
STEREO output level
VOST
fm = 1kHz, 100% Mod, 15kHz LPF
-7.0
-5.5
-3.0
dBV
STEREO distortion
THDS
fm = 1kHz, 100% Mod, 15kHz LPF
1.0
2.5
%
STEREO frequency characteristics
FCS1
fm = 3kHz, 30% Mod, 15kHz LPF
* Measure ratio from fm = 1kHz level.
-3
0
3
dB
STEREO S/N ratio
SNS
S = VOST, N = 0% Mod, 15kHz LPF
50
60
dB
STEREO separation 1
STSE1
f = 300Hz (R/L), 30% Mod, 15kHz LPF
15
25
dB
STEREO separation 2
STSE2
f = 3kHz (R/L), 30% Mod, 15kHz LPF
15
25
dB
STEREO Detection level-1
VINSD1
Except Stereo Detection
Stereo Detection
* serial control 1 “SENS HI” Pilot (fH) = 15.73kHz
* Measure Pilot level.
30
35
40
%
STEREO Detection level-2
VINSD2
Except Stereo Detection
Stereo Detection
* serial control “SENS LO”
40
45
50
%
STEREO Detection hysteresis
HYST
Input Mod. Difference at Stereo/Except Stereo Det.
* serial control 1 “SENS HI”
10
20
30
%
SAP output level-1
VOSA1
fm = 1kHz, 100% Mod, 15kHz LPF
* SAP-1 (serial control)
-14.0
-11.0
-8.0
dBV
SAP output level-2
VOSA2
fm = 1kHz, 100% Mod, 15kHz LPF
* SAP-2 (serial control)
-12.0
-9.0
-6.0
dBV
SAP distortion
THDSA
fm = 1kHz, 100% Mod, 15kHz LPF
2.5
3.5
%
SAP S/N ratio
SNSA
S = VOSA, N = 0% Mod, 15kHz LPF
50
60
dB
SAP detection level-1
VINSA1
Except SAP
→ SAP Det.
* serial control 1 “SENS HI” SAP Carrier = 5fH only
* Measure Output level.
10
15
20
%
SAP detection level-2
(Reference)
VINSA2
Except SAP
→ SAP Det.
* serial control 1 “SENS LO”
* Measure Output level.
15
20
25
%
SAP detection hysteresis
HYSA
Input Mod. Difference at SAP/Except SAP Det.
* SAP carrier only.
* serial control 1 “SENS HI”
2
5
10
%
MODE output MONO
MODMO
Input = MONO : f = 1kHz, 0% Mod
0.7
1
1.3
V
MODE output SAP
MODSA
Input = SAP : Carrier
1.6
1.9
2.2
V
MODE output STEREO
MODST
Input = STEREO : Pilot
2.5
2.8
3.1
V
MODE output ST + SAP
MODSS
Input = STEREO : Pilot,
SAP : Carrier
3.5
3.8
4.2
V
* Normally measurement condition is Input = SIF mode (90dBV)
* " Reference " Items are reference levels, their specs are no-guarantee.
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