ICs for Audio Common Use
1
Publication date: December 2001
SDC00042BEB
AN17000A
Audio signal processing IC for notebook PC
I Overview
AN17000A has a speaker power amplifier, head-
phone power amplifier, line amplifier, electronic
volume and a bass boost circuit for notebook PC.
This IC adopts a small thin package, enabling com-
pact and a space saving set.
I Features
Possible speaker power is
1 W
2-ch. : 8 output at V
CC
= 5 V or
0.5 W
2-ch. : 8 output at V
CC
= 5 V
A gain and frequency response of bass boost can
be adjusted with external components
Each amplifiers has a standby and mute switch
Small outline thin package (1.0 mm)
I Applications
Notebook PC
LCD monitor with speakers for PC
HSOP056-P-0300A (Lead-free package)
Unit: mm
I Block Diagram
Speak
er amplif
ier
with bass boost
5 V
,
8
, 1
W
Head phone amplif
ier
Beep input
Electronic v
olume
Line amplif
ier
Bass boost SW
Speak
er amplif
ier
standby SW
Head phone amplif
ier
standby SW
Speak
er amplif
ier
mute SW
Head phone amplif
ier
mute SW
Line amplif
ier
mute SW
14.00
0.10
0.20
0.05
(0.25)
(1.00)
0
to 8
0.50
0.10
0.15
0.05
Seating plane
Seating plane
(6.90)
(5.45)
56
29
28
1
(2.25)
(3.70)
6.10
0.10
0.10
0.10
8.10
0.20
1.20 max.
(1.00)
0.50
M
0.10
0.10
Area of no resin flash
AN17000A
2
SDC00042BEB
I Application Circuit Example
29
28
30
26
31
24
32
22
33
20
34
18
35
16
36
14
37
13
38
12
39
11
40
10
41
9
42
8
44
7
46
6
48
5
50
4
52
3
27
25
23
21
19
17
15
54
2
56
43
45
47
49
51
53
55
1
Out-R (line)
Out-L (line)
Mute (line)
Beep control (line)
V
CC1
(SP)
V
CC2
(SP)
In-R (line)
V
CC3
(SP)
Line-
mute
HP-
mute
SP-
mute
R.F.
R.F.
V
o
lume
V
o
lume
Bass
boost
Bass
boost
4.7
F
1
F
1
F
75 k
0.68
F
Mute (HP)
V
CC
(HP)
Standby (HP/line)
V
REF
(HP/line)
Volume
Beep control (HP)
Mute (SP)
10 k
51 k
4.7
F
Out-L (SP)
10 k
75 k
50 k
0.68
F
4.7
F
0.1
F
4.7
F
0.1
F
1
F
75 k
10 k
220 k
75 k
Standby (SP)
Bass SW
Bass AGC
0.68
F
47
F
HP jack
Out-R (HP)
HP
32
Out-L (HP)
V
CC1
(HP)
V
CC2
(HP)
In-R (HP)
In-L (HP)
0.68
F
1
F
Out-R (SP)
In-L (SP)
In-R (SP)
12 k
12 k
220
F
1
F
In-L (line)
1
F
1
F
1
F
33 k
30 k
30 k
Beep
220
F
1
F
26 dB
26 dB
26 dB
26 dB
0 dB
14 dB
14 dB
0 dB
6 dB
6 dB
Note) *1: Beep input notes
Don't set the input level to pin 22 to
- 0.3 V or less.
*2: Connect pin 32 and pin 34 to GND with a resistor of 1 k
or more resistance respectively.
*3: Pin36 Short: 0.5 W; Open: 1 W
AN17000A
3
SDC00042BEB
I Pin Descriptions
Pin No.
Description
1
Power supply (R-ch. speaker power use)
2
R-ch. speaker output 1
3
R-ch. speaker output 2
4
N.C.
5
GND (R-ch. SP power use)
6
Bass boost capacitor 1
7
Speaker R-ch. input
8
Speaker L-ch. input
9
Ripple filter (SP)
10
Power supply (Speaker small signal use)
11
L-ch. headphone output
12
R-ch. headphone output
13
GND (HP power use)
14
GND (HP small signal use)
15
N.C.
16
Power supply (HP power use)
17
Power supply (HP small signal use)
18
N.C.
19
N.C.
20
N.C.
21
N.C.
22
Beep input
23
N.C.
24
Headphone R-ch. input 2
25
Headphone L-ch. input 1
26
N.C.
27
Line amplifier L-ch. input
28
Line amplifier R-ch. input
Pin No.
Description
29
Line amplifier R-ch. output
30
GND (line small signal use)
31
Line amplifier L-ch. output
32
Beep control (line)
33
Line mute control
34
Beep control (HP)
35
HP mute control
36
Speaker power selector
37
Ripple filter 1
38
GND (Small signal use)
39
Volume control
40
Ripple filter 2
41
Standby (HP/line)
42
N.C.
43
SP mute control
44
Standby (SP)
45
R1 for bass boost gain
46
R2 for bass boost gain
47
Bass boost capacitor 2
48
Bass boost capacitor 3
49
Bass boost capacitor 4
50
Bass boost AGC
51
Bass boost control
52
GND (L-ch. SP power use)
53
N.C.
54
L-ch. speaker output 2
55
L-ch. speaker output 1
56
Power supply (L-ch. speaker power use)
AN17000A
4
SDC00042BEB
Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for T
a
= 25C.
*2: Without signal
*3: T
a
= 75C, mounted on standard board.
I Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply voltage
*2
V
CC
5.75
V
Supply current
I
CC
1 200
mA
Power dissipation
*3
P
D
0.517
W
Operating ambient temperature
*1
T
opr
-25 to +75
C
Storage temperature
*1
T
stg
-55 to +150
C
I Recommended Operating Range
Parameter
Symbol
Range
Unit
Supply voltage
V
CC
4.5 to 5.5
V
I Electrical Characteristics at f = 1 kHz, V
CC
= 5 V, T
a
= 25C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Quiescent circuit current 1
I
T1
Current of V
CC1(SP)
, V
CC2(SP)
,
7.5
13.1
mA
V
CC3(SP)
= 5 V/(no load)
Quiescent circuit current 2
I
T2
Current of V
CC1(HP)
, V
CC2(HP)
= 5 V/(no load)
15
20
mA
Standby current 1
I
ST1
STB: On current of V
CC1(SP)
,
0.1
50
A
V
CC2(SP)
, V
CC3(SP)
= 5 V
Standby current 2
I
ST2
STB: On current of V
CC1(HP)
, V
CC2(HP)
= 5 V
0.1
50
A
Speaker amplifier (R
L
= 8 )
L-ch. output voltage level
*1
V
SPL
V
IN
= -10 dBV
1.5
4.0
6.5
dBV
Pin 36: Open
R-ch. output voltage level
*1
V
SPR
V
IN
= -10 dBV
1.5
4.0
6.5
dBV
Pin 36: Open
L-ch. total harmonic
TH
SL
V
IN
= -10 dBV
0.2
0.5
%
distortion
*1
Pin 36: Open
R-ch. total harmonic
TH
SR
V
IN
= -10 dBV
0.2
0.5
%
distortion
*1
Pin 36: Open
L-ch. max. output power
*1
V
MAXSL
THD
= 1%
0.7
0.8
W
Pin 36: Open
R-ch. max. output power
*1
V
MAXSR
THD
= 1%
0.7
0.8
W
Pin 36: Open
L-ch. max. output power 1
*1
V
MAXS1L
THD
= 1%
0.3
0.4
W
Pin 36: Short to GND
R-ch. max. output power 1
*1
V
MAXS1R
THD
= 1%
0.3
0.4
W
Pin 36: Short to GND
L-ch. output noise voltage
*2
V
NSL
R
g
= 1 k
-80
-70
dBV
Pin 36: Open
Note) *1: DIN audio filter is used.
*2: A-curve filter is used.
AN17000A
5
SDC00042BEB
I Electrical Characteristics at f = 1 kHz, V
CC
= 5 V, T
a
= 25C (continude)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Speaker amplifier (continued) (R
L
= 8 )
R-ch. output noise voltage
*2
V
NSR
R
g
= 1 k
-80
-70
dBV
Pin 36: Open
Channel balance
CHB
S
V
IN
= -10 dBV
-1
0
1
dB
Pin 36: Open
L-ch. crosstalk
*1
CT
LSLR
V
IN
= -10 dBV
70
80
dB
Pin 36: Open
R-ch. crosstalk
*1
CT
LSRL
V
IN
= -10 dBV
70
80
dB
Pin 36: Open
L-ch. mute attenuation
*1
V
MUSL
V
IN
= -10 dBV
70
80
dB
Pin 36: Open
R-ch. mute attenuation
*1
V
MUSR
V
IN
= -10 dBV
70
80
dB
Pin 36: Open
Headphone amplifier (R
L
= 32 )
L-ch. output voltage level
*1
V
HPL
V
IN
= -10 dBV, R
L
= 32
-8.4
-5.0
-2.5
dBV
R-ch. output voltage level
*1
V
HPR
V
IN
= -10 dBV, R
L
= 32
-8.4
-5.0
-2.5
dBV
L-ch. total harmonic distortion
*1
TH
HL
V
OUT
= -14 dBV, R
L
= 32
0.03
0.1
%
R-ch. total harmonic distortion
*1
TH
HR
V
OUT
= -14 dBV, R
L
= 32
0.03
0.1
%
L-ch. max. output level
*1
V
MAHL5
THD
= 1%, R
L
= 10 k
0.0
dBV
R-ch. max. output level
*1
V
MAHR5
THD
= 1%, R
L
= 10 k
0.0
dBV
L-ch. output noise voltage
*2
V
NHL
R
g
= 1 k
-90
-80
dBV
R-ch. output noise voltage
*2
V
NHR
R
g
= 1 k
-90
-80
dBV
Channel balance
CHB
H
V
IN
= -10 dBV, R
L
= 32
-2
0
2
dB
L-ch. crosstalk
*1
CT
LHLR
V
IN
= -10 dBV, R
L
= 32
60
70
dB
f
= 10 kHz
R-ch. crosstalk
*1
CT
LHRL
V
IN
= -10 dBV, R
L
= 32
60
70
dB
f
= 10 kHz
L-ch. mute attenuation
*1
V
MUHL
V
IN
= -10 dBV, R
L
= 32
70
80
dB
R-ch. mute attenuation
*1
V
MUHR
V
IN
= -10 dBV, R
L
= 32
70
80
dB
Volume
L-ch. middle voltage gain
*1
VOL
L
V
IN
= -20 dBV, V
ol
= 1/2 V
CC
-34.5 -32.0 -29.5
dBV
R-ch. middle voltage gain
*1
VOL
R
V
IN
= -20 dBV, V
ol
= 1/2 V
CC
-34.5 -32.0 -29.5
dBV
Middle channel balance
V
CHB
V
IN
= -20 dBV, V
ol
= 1/2 V
CC
-2
0
2
dB
L-ch. volume attenuation
*1
VOL
NL
V
IN
= -10 dBV, V
ol
= 0 V
70
80
dB
R-ch. volume attenuation
*1
VOL
NR
V
IN
= -10 dBV, V
ol
= 0 V
70
80
dB
Note) *1: DIN audio filter is used.
*2: A-curve filter is used.
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