HA12232FP
Audio Signal Pre-Amp. for Car Deck
REJ03F0136-0100
(Previous: ADE-207-328)
Rev.1.00
Jun 15, 2005
Description
HA12232FP is audio signal pre-amp. LSI providing PB equalizer op-amp. in one chip.
Functions
• PB equalizer × 2 channel
• Vref buffer × 1 channel
Features
• Built-in referential voltage (VREF) for PB equalizer decreases external components.
• This IC is low noise.
• This IC is strong for a cellular phone noise.
Operating Voltage Range
Product
HA12232FP
Min
6.5
Note: This IC is designed to operate on single supply.
Rev.1.00 Jun 15, 2005 page 1 of 11
Max
15
Unit
V
HA12232FP
Pin Description, Equivalent Circuit
(VCC = 9 V single supply, Ta = 25°C, No Signal, The value in the table shows typical value.)
Pin No.
7
Pin Name
RIP
Note
V = VCC/2
Equivalent Circuit
Description
VCC
Ripple filter
V
GND
1
VREF
V = VCC/2
VCC
Reference output
GND
VCC
Equalizer output
V 1
10
EQOUT(L)
V = VCC/2
V
GND
5
EQOUT(R)
2
PBIN(R)
PB equalizer input
PBIN
NFI
13
PBIN(L)
3
NFI(R)
12
NFI(L)
8
14
4
6
9
11
VCC
GND
NC
V = VCC/2
Equalizer output
for time constant
Rev.1.00 Jun 15, 2005 page 2 of 11
Power supply
GND pin
HA12232FP
Block Diagram
EQOUT(L)
R6
180
C3
0.01µ
VCC
R4
12k
R5
330k
11
10
9
8
NC
NC
12
NFI(L)
13
PBIN(L)
GND
14
−
+
4
R2
5
C1
0.01µ
6
7
C2
1µ
330k
R1
180
RIP
3
NC
NFI(R)
2
NC
1
−
PBIN(R)
VREF
+
+
R3
12k
EQOUT(R)
Unit R: Ω
C: F
Rev.1.00 Jun 15, 2005 page 3 of 11
HA12232FP
Absolute Maximum Ratings
(Ta = 25°C)
Item
Supply voltage
Power dissipation
Operating temperature
Storage temperature
Symbol
VCC Max
Pd
Topr
Tstg
Rating
Unit
16
400
−40 to +85
−55 to +125
Note
V
mW
°C
°C
Ta ≤ 85°C
Electrical Characteristics
(Ta = 25°C, VCC = 9 V, Rg = 680 Ω)
Item
Quiescent current
Channel separation
EQ gain
THD
EQ maximum output
Noise voltage level
converted in input
Note:
IQ
CT RL
GV 1k
GV 10k
THD
VOM
Test Condition
No signal
Fin = 1kHz, Vin = 6mVrms
Fin = 1kHz, Vin = 0.6mVrms
Fin = 10kHz, Vin = 0.6mVrms
Fin = 1kHz, Vin = 2.4mVrms
Fin = 1kHz, THD = 1%
Specification
Min
Typ
Max
1.5
2.2
3.2
50.0
60.0
37.0
40.0
43.0
33.0
36.0
39.0
0.1
0.5
300
600
Unit
mA
dB
dB
dB
%
mVrms
VN
Rg = 680Ω, Din-Audio Filter
µVrms
Symbol
0.7
1.5
Remark
*1
1. VCC = 6.5 V
Functional Description
Power Supply Range
HA12232FP is designed to operate on single supply only.
Table 1
Supply Voltage Range
Product
Single Supply
HA12232FP
6.5 V to 15.0 V
Reference Voltage
HA12232FP provides the reference voltage of half the supply voltage that is the signal grounds. As the peculiarity of
this device, the capacitor for the ripple filter is very small about 1/100 compared with their usual value. The block
diagram is shown as figure 1.
8 VCC
+
−
14
7
1
Figure 1 The Block Diagram of Reference Supply Voltage
Rev.1.00 Jun 15, 2005 page 4 of 11
HA12232FP
Input Block Diagram and Level Diagram
Vref
0.6mVrms
(−62.2dBs)
PBIN
+
−
60mVrms
(−22.2dBs)
PB-EQ
Amp.
EQOUT
NFI
R2
330k
R1
180
C1
0.01µ
R3
12k
PB-EQ Amp. Gv = 40 dB, f = 1 kHz
Figure 2 Input Block Diagram
Cutoff Frequency, Gain of PB-EQ Amp.
Transfer Function
T = R2 [w2 c12 (R2 + R3) (R1 + R3) + 1] / R1 [w2 c12 (R2 + R3)2 + 1]
+ j ⋅ R2w c12 (R1 − R2) / R1 [w2 c12 (R2 + R3)2 + 1]
G0
Cutoff Frequency
fc = {[−b ± (b2 − 4a)1/2] / 2a} / 2π
a = 2c14 (R2 + R3)2 (R3 + R1)2
b = [3 (R2 + R3) (R3 + R1) − (R2 + R3)2 − (R3 + R1)2] c12
GV
G∞
Changing the value of each element to one shown in figure 2,
will be as follows.
fc1
fc2
f
fc1 = 50 Hz, fc2 = 1300 Hz
PB-EQ Amp. Gain (f = 0, ∞)
f=0
T0 = R2 / R1
G0 = 65.3 dB
f=∞
T∞ = R2 (R3 + R1) / R1 (R2 + R3)
G∞ = 36.3 dB
Figure 3 Cutoff Frequency of PB-EQ Amp.
Rev.1.00 Jun 15, 2005 page 5 of 11
SW1 Rch
AC VM1
Notes: 1. Resistor tolerance ±1%
2. Capacitor tolerance ±1%
3. Unit R: Ω, C: F
Lch
AUDIO SG
C4
22µ
12
R7
680 R1
180
2
1
+
13
NFI(L)
3
NFI(R)
14
+
−
R9
10k
C7
2.2µ
R3
12k
330k
4
R2
C1
0.01µ
−
+
+
R5
C8
2.2µ
R4
12k
330k
11
NC
NC
C5
22µ
GND
VREF
PBIN(L)
PBIN(R)
10
+
EQOUT(L)
5
+
EQOUT(R)
C3
0.01µ
9
C2
1µ
8
6
7
+
NC
NC
R6
R8 180
680
VCC
Rev.1.00 Jun 15, 2005 page 6 of 11
RIP
R10
10k
+
Rch SW2
Lch
C6
100µ
Noise
meter
Oscillo
scope
Distortion
analyzer
AC VM2
DC +9V
SOURCE1
Rch SW3
Lch
DC VM1
HA12232FP
Test Circuit
HA12232FP
Characteristic Curves
Quiescent Current vs. Supply Voltage
Quiescent Current IQ (mA)
3.0
2.5
2.0
1.5
5
−40
6
7
8
9 10 11 12 13
Supply Voltage (V)
14
15
16
Channel Separation vs. Frequency (L→R, R→L)
Channel Separation (dB)
−60
−80
−100
−120
−140
10
Rev.1.00 Jun 15, 2005 page 7 of 11
100
1k
Frequency (Hz)
10k
100k
HA12232FP
EQ Amp. Gain vs. Frequency
80
70
EQ Gain (dB)
60
50
40
30
VCC = 9.0 V
PBIN→EQOUT
20
10
100
1k
Frequency (Hz)
10k
100k
Total Harmonic Distortion vs. Supply Voltage
1.0
100 Hz (30 kHz LPF)
1 kHz (400 Hz HPF + 30 kHz LPF)
10 kHz (400 Hz HPF + 80 kHz LPF)
PBIN→EQOUT
Vout = 240 mVrms
T.H.D. (%)
0.1
0.01
0.001
5
Rev.1.00 Jun 15, 2005 page 8 of 11
6
7
8
9 10 11 12 13
Supply Voltage (V)
14
15
16
HA12232FP
Total Harmonic Distortion vs. Output Level
10.0
T.H.D. (%)
1.0
100 Hz (30 kHz LPF)
1 kHz (400 Hz HPF + 30 kHz LPF)
10 kHz (400 Hz HPF + 80 kHz LPF)
PBIN→EQOUT
VCC = 9.0 V
0 dB = 60 mVrms
0.1
0.01
0.001
−10
0
10
20
Output Level Vout (dB)
30
40
Signal Handling
5.0
Vomax (Vrms)
4.0
100 Hz (30 kHz LPF)
1 kHz (400 Hz HPF + 30 kHz LPF)
10 kHz (400 Hz HPF + 80 kHz LPF)
PBIN→EQOUT
T.H.D. ≅ 1 %
3.0
2.0
1.0
5
Rev.1.00 Jun 15, 2005 page 9 of 11
6
7
8
9 10 11 12 13
Supply Voltage (V)
14
15
16
HA12232FP
Noise Voltage Level Converted in Input vs. Supply Voltage
Noise Voltage Level Converted in Input (µVrms)
1.5
Rg = 680 Ω
Din-Audio Filter
1.0
0.5
0
5
6
7
8
9 10 11 12 13
Supply Voltage (V)
14
15
16
Ripple Rejection Ratio vs. Frequency
Ripple Rejection Ratio R.R.R. (dB)
20
0
−20
−40
−60
10
Rev.1.00 Jun 15, 2005 page 10 of 11
100
1k
Frequency (Hz)
10k
100k
HA12232FP
Package Dimensions
JEITA Package Code
P-SOP14-5.5x10.06-1.27
RENESAS Code
PRSP0014DF-A
*1
Previous Code
FP-14DA
D
MASS[Typ.]
0.23g
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
F
14
8
bp
c1
c
HE
*2
E
b1
Index mark
Reference
Symbol
Terminal cross section
1
Z
*3
Nom
Max
D
10.06
10.5
E
5.5
A2
7
e
A1
bp
Dimension in Millimeters
Min
x
M
0.00
L1
bp
0.34
A
A1
θ
y
L
Detail F
0.42
0.50
0.40
0.17
c
c
0.20
2.20
b1
0.22
0.27
0.20
1
θ
0°
HE
7.50
e
8°
7.80
8.00
1.27
x
0.12
y
0.15
1.42
Z
0.50
L
L
Rev.1.00 Jun 15, 2005 page 11 of 11
0.10
A
1
0.70
1.15
0.90
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