Ordering number : ENA1746
Bi-CMOS IC
LV23401V
Overview
For Home Stereo System
1-chip Tuner IC Incorporating PLL
The LV23401V is a AM/FM one-chip tuner IC for home stereo system.
Functions
•
AM tuner
•
FM tuner
•
MPX stereo decoder
•
FLL tuning system
Features
•
All the adjustment work of external parts is unnecessary.
•
CCB control with easy command base
•
External parts are reduced by LOW-IF frequency (FM=225kHz, AM=53kHz) adoption.
•
The high sensitivity reception is achieved in low noise MIX input circuit.
•
All bands of Japan-U.S.-Euro can be received by the soft program change (76MHz to 108MHz).
•
With built-in FLL(Frequency Locked Loop) tune function
•
Soft mute and stereo blend function (seven stages programmed control possible)
•
With built-in adjacent channel obstruction removal function
•
With built-in stereo pilot cancellation function
•
For EN55020-S1 standard (European immunity)
•
With built-in power save function
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
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
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.
61610 SY 20100428-S00002 No.A1746-1/24
LV23401V
Specifications
Maximum Ratings
at Ta = 25
°C
Parameter
Maximum supply voltage
Maximum output voltage
Maximum input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
VO max
VIN1 max
VIN2 max
Pd max
Topr
Tstg
Conditions
Analog block supply voltage
Digital block supply voltage
CE, DI, CL
CLK IN
Ta≤70°C *2)
Ratings
10.0
4.5
*1) Vref2+0.35
4.5
450
-20 to +70
-40 to +125
Unit
V
V
V
V
mW
°C
°C
*1) Vref2 = 22 pin voltage
*2) When mounted on the specified printed circuit board (114.3mm × 76.1mm × 1.6mm), glass epoxy
Operating Condition
at Ta = 25
°C
Parameter
Recommended supply voltage
Operating supply voltage range
Symbol
VCC
VCC op
Conditions
Analog block supply voltage
Resister 1Eh Bit 1(LEVSHIF)=0
Resister 1Eh Bit 1(LEVSHIF)=1
* Stabilize the service voltage so as not to cause the voltage charge by the noise etc.
Ratings
9.0
4.5 to 6.5
8.5 to 9.5
Unit
V
V
V
Interface block allowable operation range
at Ta = -20 to +70°C, VSS = 0V
Parameter
Input “H” level voltage
Input “L” level voltage
Output voltage
Crystal frequency
Crystal frequency deflection
Symbol
VIH1
VIH2
VIL1
VIL2
VO
fIN
f devi1
f devi2
Crystal vibrator load capacity
CL
CE, DI, CL
CLK IN
CE, DI, CL
CLK IN
D0
CLK IN
For the standard European immunity
When standard non-corresponds European
immunity
*
4
12.5
pF
* The evaluation request to the crystal maker is recommended because it changes by the substrate and the circuit constant used.
-50
-150
Conditions
Ratings
min
2.3
2.3
0
0
0
32.768
+50
+150
typ
max
3.435
3.435
0.5
0.3
4.0
Unit
V
V
V
V
V
kHz
ppm
ppm
Operating Characteristics
at Ta = 25°C, VCC = 9.0V with the designated circuit.
Parameter
Current drain
(at no input)
Power save current drain
VDD output voltage
VDD drop-out voltage
Symbol
ICCFM
ICCAM
I standby
VDD
VDD_drop
Conditions
No input in FM mode. 15 pin supply current.
No input in AM mode. 15 pin supply current.
15 pin supply current
power save : Register 1Fh_bit0 = 0
22 pin voltage (reference value)
22 pin voltage. Drive mode at 10mA.
*Drive current maximum = 10mA
[FM receive characteristics] : fc = 98MHz, VIN = 60dBμV, fm = 1kHz, De-emphasis = 50μs, IF = 225kHz, BW = 50%
MONO : 75kHz dev.
S/N 50dB Sensitivity
S/N 30dB Sensitivity
IHF Sensitivity
Signal-to-noise ratio
Total harmonic distortion
STEREO : L+R = 67.5kHz dev., Pilot = 7.5kHz dev.
SN50
SN30
IHF
SN
SN-ST1
THD1
THD1-ST
THD2
THD3
Input level that becomes S/N=50dB
Input level that becomes S/N=30dB
Input level that becomes THD=3%
MONO
STEREO
MONO
STEREO
MONO, 150kHz dev.
MONO, VIN = 120dBμV
62
58
17
12
12
70
66
0.5
0.5
1.5
0.6
1.5
2.5
5
2.5
24
18
20
dBμV
dBμV
dBμV
dB
dB
%
%
%
%
Volume level = 3, Soft mute = off, Soft stereo = off, Resister 1Eh Bit 1(LEVSHIF) = 1, 9 pin output, IHF-BPF
(2.772)
3.3
0.15
(3.435)
V
V
Ratings
min
25
14
typ
35
24
0.25
max
45
34
0.7
Unit
mA
mA
mA
Continued on next page.
No.A1746-2/24
LV23401V
Continued from preceding page.
Parameter
Demodulation output
Symbol
VO0
VO1
VO2
VO3
MPX output
Channel balance
SD operation level
Stereo operation level
Stereo separation
Sep
De-emphasis deflection
Carrier leakage
Pilot margin
(Pilot lighting sensitivity)
AM suppression ratio
Mute attenuation
Deemp50
Deemp75
CL
ST-ON
AMR
MUTE
VO_MPX
CB
SD
ST
Conditions
MONO, VOL = 0 (reference value)
MONO, VOL = 1 (reference value)
MONO, VOL = 2 (reference value)
MONO, VOL = 3 (reference value)
*In-house management = Typ
±3.0dB
6 pin output
10 pin output / 9 pin output
FS_S = 4
FS_S = 4
Both channels of 9 pins and 10 pins are
measured.
*In-house management value
≥25dB
fm = 10kHz, 15kHz LPF OFF
fm = 10kHz, 15kHz LPF OFF
STEREO S/N, 15kHz LPF OFF
L+R = 67.5kHz, Pilot-mod
400Hz AM 30% mod.
30
0.6
40
60
65
75
-12.5
-10
-13
40
5.5
-7.5
dB
dB
dB
%
dB
dB
25
40
dB
Ratings
min
(218)
(291)
(366)
518
100
-1
17
17
typ
(327)
(436)
(549)
775
200
0
25
25
max
(489)
(652)
(821)
1160
300
+0
33
33
Unit
mVrms
mVrms
mVrms
mVrms
mVrms
dB
dBμV
dBμV
[AM receive characteristics] : fc = 1MHz, VIN = 94dBμV, fm = 400Hz, 30% mod, IF = 53kHz, BW = 50%
Volume level = 3, Soft mute = 4, Resister 1Eh Bit 1(LEVSHIF) = 1, 9 pin output, 15kHz LPF OFF
S/N 20dB Sensitivity
SN20
SN20-L
SN20-H
Signal-to-noise ratio
Total harmonic distortion
Detected output
SN
THD1
THD2
VO0
VO1
VO2
VO3
Channel balance
AGC response
CB
AGC1
AGC2
Frequency response
SD operation level
Mute attenuation
Hi-cut
SD
MUTE
VIN = 104dBμV
VOL = 0 (reference value)
VOL = 1 (reference value)
VOL = 2 (reference value)
VOL = 3
10 pin output / 9 pin output
Input level difference that output level becomes
-10dB. Soft mute = 3 (reference value)
Soft mute = 4
fm = 4kHz
AGC = ON, FS = 4
*In-house management =46 to 65dBμV
15kHz LPF ON
(55)
(69)
(87)
110
-1
(52)
47
-22
46
50
Input level that becomes S/N=20dB
fc = 603kHz (reference value)
fc = 1404kHz (reference value)
42
49
(55)
(49)
50
0.6
0.8
(78)
(98)
(123)
155
0
(62)
57
-17
54
65
-12
65
2.8
2.8
(109)
(138)
(173)
218
+1
65
(65)
(65)
dBμV
dBμV
dBμV
dB
%
%
mVrms
mVrms
mVrms
mVrms
dB
dB
dB
dB
dBμV
dB
Package Dimensions
unit : mm
3191B
9.75
30
16
5.6
7.6
1
0.65
(0.33)
0.22
15
0.15
SANYO : SSOP30(275mil)
0.1
(1.3)
1.5max
0.5
No.A1746-3/24
LV23401V
Pin function
pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
pin name
AM ANT
AM ref
AM CAP
GND1
Vref1
MPX OUT
AM AGC
GND2
L OUT
R OUT
VCC Low
AM LCF
SD OUT
ST OUT
VCC
CLK IN
ST ADJ
CE
CL
DI
DO
Vref2
GND3
L1
Vref3
L2
SD ADJ
FLL CAP
GND4
FM ANT
Description
AM antenna
AM reference voltage
AM capacitor bank
AM antenna GND
Analog reference voltage
Detected output
AM AGC
Analog GND
L-ch audio output
R-ch audio output
Low voltage mode
AM low cutting filter
SD detecting phase output
ST detecting phase output
Supply voltage
Reference clock input
Pilot margin adjustment pin
address/data switching
timing
Communication clock
Data input
Data output
VDD voltage output
Logic GND
Local oscillation circuit
Reference voltage for local
oscillation circuit
Local oscillation circuit
SD = ON sensitivity
adjustment pin
FLL low pass filter
FM antenna GND
FM antenna
It connects it to 25 pin through 0.1μF.
Connect to GND
Input impedance 75Ω.
It connects it to 25 pin through 33nF.
It connects it to GND through 22kΩ
It connects it to 22 pin through 10kΩ
3.3V voltage output pin.
It is also possible to supply the current to other IC up to 10mA.
Connect to GND
It connects it to 25 pin through 33nF.
It connects it to GND through the capacitor of 100μF
The crystal is recommended to be used.
It is also possible to input directly clock signals (square wave GND standard).
It connects it to GND through 180kΩ
Remark
It connects it to 2pin through the matching coil or the bar antenna.
It connects it to 1pin through the matching coil or the bar antenna.
It connects it to GND through an external inductor of recommendation 240μH.
Connect to GND
It connects it to GND through the capacitor of 1μF.
LC72725 and connection when RDS is used
It connects it to GND through the capacitor of 4.7μF
Connect to GND
The DC level changes by setting Resistor 1Eh bit1 (LEVSHIF) to adjust the output level
according to the VCC potential.
It is short with 15pin when using it with VCC
< 6.0V
or less.
It connects it to GND through the capacitor of 0.047μF
2.0V
DC_bias
No.A1746-4/24
LV23401V
Description of Pin Functions
No.
1
Pin name
AM-ANT
Voltage (V)
2.2V
Internal Equivalent Circuit
Remarks
AM antenna input pin.
The AM antenna coil is connected between
2pin.
R = 100Ω
1
R
R
2
2
AM-REF
2.2V
AM standard bias pin.
15
2.2V
Regulator
2
3
AM-CAP
-
AM Tuning for tune pin.
3
CAP-BANK
(AM Capacitor Bank)
4
5
GND1
VREF1
0V
4.3V
Analog (AM_FE) GND pin.
15
4.3V
Regulator
5
Analog (tuner area) standard bias pin.
VREF = 4.3V
6
MPX-OUT
2.5V
FM demodulation output pin.
R2
6
R1
R3
R1 = 100Ω
R2 = 23kΩ
R3 = 1kΩ
7
AM RF-AGC
-
AGC pin for AM-RF department Gain control.
R1 = 2MΩ
R2 = 5kΩ
R2
7
R1
R4
R3
R3 = 250Ω
R4 = 1kΩ
8
9
10
GND2
L-OUT
R-OUT
0V
2.5V
(It is 3.3V
for
LEVSHIF =
1)
Analog (tuner) GND pin.
15
L-ch (R-ch) output pin.
R = 100Ω
ROUT = 150Ω
R
10
9
Continued on next page.
No.A1746-5/24
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