Transcript
Ordering number : ENN7139
Monolithic Linear IC
LA2901V Four-Channel High-Output Line Amplifier for Car Audio Systems
Overview
Package Dimensions
The LA2901V is a high output level 4-channel line amplifier designed for car audio systems. This line amplifier provides an output signal with a significantly higher amplitude than the output signal provided by earlier preamplifiers. This higher amplitude significantly improves the signal-to-noise ratio in the connection from the main unit to the external power amplifier, and results in improved power amplifier performance.
unit: mm 3175B-SSOP24 (275 mil) [LA2901V] 7.8
0.5
The LA2901V also significantly reduces the required mounting area by cutting in half the number of external capacitors required for boosting the signal-system supply voltage and is available in SSOP miniature package.
1
0.15
0.22 (1.3)
0.65
0.1
1.5max
(0.33)
Functions and Features • • • • • •
7.6
5.6
24
High output level (5.3 Vrms) Low output noise voltage (12 µV) Low total harmonic distortion (0.004%) High ripple rejection ratio (70 dB) Fewer external parts required Excellent audio fidelity
SANYO: SSOP24 (275 mil)
Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation
Symbol VCC max Pd max
Conditions
Ratings
With no input signal Ta ≤ 85°C, Mounted on a printed circuit board (114.3 × 76.1 × 1.6 mm3, glass epoxy)
Unit
13
V
400
mW
Operating temperature
Topr
–40 to +85
°C
Storage temperature
Tstg
–40 to +150
°C
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN O3001TN (OT) No. 7139-1/5
LA2901V Recommended Operating Conditions at Ta = 25°C Parameter
Symbol
Recommended operating voltage
Conditions
Ratings
VCC
Unit 9
V V
Allowable operating supply voltage range
VCCOP
6 to 12
Recommended load resistance
RLOP
10
kΩ
Electrical Characteristics at Ta = 25°C, VCC = 9 V, RL = 10 kΩ, f = 1 kHz, Rg = 600Ω Parameter
Symbol
Quiescent current
Ratings
Conditions
ICCO
min
typ
Unit
max
Rg = 0
10
16
22
Voltage gain
VG
VO = 0 dBm
7.5
8
8.5
Output voltage
VO
THD = 0.1%
5.0
5.3
Total harmonic distortion
THD
VO = 3 Vrms, LPF = 80 kHz
Output noise voltage
VNO
Rg = 0, BPF = 20 Hz to 20 kHz
Ripple rejection ratio
SVRR
Rg = 0, fr = 100 Hz, Vr = 100 mVrms, BPF = 20 Hz to 20 kHz
60
70
Channel separation
CHsep
Rg = 10 kΩ, VO = 1 Vrms
60
70
21
30
Input resistance
Ri
mA dB Vrms
0.004
0.01
12
17
% µVrms dB dB
39
kΩ
LF OUT
LR OUT
L GND
LIFT L VD
LIFT L OUT
VCC L
VCC R
LIFT R OUT
LIFT R VD
R GND
RF OUT
RR OUT
Pin Assignment
24
23
22
21
20
19
18
17
16
15
14
13
LA2901V
2
3
4
5
6
7
8
9
10
11
12
LF IN--
LF IN+
N.C
LR IN--
LR IN+
DC L
DC R
RF IN+
RF IN--
N.C
RR IN+
RR IN--
Top view 1
ILA00924
No. 7139-2/5
LA2901V Sample Application Circuit and Block Diagram
24kΩ
36kΩ SIGNAL AMP
--
1 LF-IN
3
VREF
-+
VCC
SIGNAL AMP
--
4
23
+
5 VREF
LF-OUT
30kΩ
LR-IN + 22µF
22µF + 10kΩ
+
2
+ 22µF
24
-+
22
VCC
22µF +
LR-OUT
10kΩ
24kΩ
36kΩ
30kΩ
LIFT AMP
+
X
+ 20
100µF
21
--
6
VREF
-+ 12kΩ
1.5NF
DC-L
36kΩ
Ripple Filter +
19
VREF
12kΩ
+ --
36kΩ
1.5NF
47µF
7 DC-R
VCC 9.0V
10µF
+
18
-LIFT AMP
+ 16
VREF
+ --
30kΩ VCC
15
RF-IN 8
+ 22µF
+ 14
VREF
+ --
30kΩ
SIGNAL AMP
22µF +
RF-OUT
10kΩ
--
9
10
100µF
17 +
X
VCC
RR-IN
--
12
13 SIGNAL AMP
22µF +
RR-OUT
10kΩ
+
11
+ 22µF
36kΩ 24kΩ
24kΩ
36kΩ ILA00923
Note: We recommend using resistors with tolerances of 1% or better for the 24 kΩ and 36 kΩ feedback resistors.
No. 7139-3/5
LA2901V ICCO, VN -- VCC
25
VO -- VCC
8
25
RL=10kΩ f=1kHz THD=0.1% Rg=600Ω L.P.F=80kHz
20
I CCO 15
15
10
10
VN 5
5
0 2
4
6
8
10
2
3
7
8
9
10
11
Supply voltage, VCC — V
VCC=9V RL=10kΩ VO=0dBm Rg=600Ω
1
2
10kHz
0.01 7 5
1kHz
3
Response — dB
3
12 ILA00926
f Response -- f
2
0.1 7 5
0
--1
100Hz
2 0
1
2
3
4
5
Output voltage, VO — Vrms
--2 10
6
20
10
9
10
11
Supply voltage, VCC — V
12
--60
--80
--100 0
200
400
600
800
Power supply ripple voltage, VCCR — mVrms
1000 ILA00931
Ripple rejection ratio, SVRR — dB
--40
5 7 10k
2 3
5 7100k ILA00928
30
20
10
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
Input resistance, Rg — Ω
2 3
5 7100k ILA00930
SVRR -- fr
--20
VCC=9V RL=10kΩ fr=1kHz Rg=0 DIN AUDIO
2 3
VNO -- Rg
ILA00929
SVRR -- VCCR
--20
5 7 1k
VCC=9V RL=10kΩ DIN AUDIO
0 10
0 8
2 3
Input frequency, f — Hz
Output noise voltage, VNO — µVrms
30
7
5 7 100
40
Rg=0 RL=10kΩ DIN AUDIO
6
2 3
ILA00927
VNO -- VCC
40
Output noise voltage, VNO — µVrms
4
6
0.001
Ripple rejection ratio, SVRR — dB
5
ILA00925
VCC=9V RL=10kΩ Rg=600Ω L.P.F=80kHz
3
6
2
THD -- VO
1.0 7 5
Total harmonic distortion, THD — %
0 14
12
Supply voltage, VCC — V
7
Output voltage, VO — Vrms
20
Output pin voltage, VN — V
Quiescent current, ICCO — mA
RL=10kΩ Rg=0
VCC=9V RL=10kΩ VCCR=100mVrms Rg=0 DIN AUDIO
--40
--60
--80
--100 10
2
3
5 7 100
2
3
5 7 1k
2
Ripple frequency, fr — Hz
3
5 7 10k 2 ILA00932
No. 7139-4/5
LA2901V CH Sep -- f
CH Sep -- f
--40
--20
VCC=9V RL=10kΩ LR=1Vrms Rg=10kΩ
Channel separation, CH sep — dB
Channel separation, CH sep — dB
--20
--60
LF
Rch --80
--100 10
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
Input frequency, f — Hz
2 3
5 7100k ILA00933
--40
VCC=9V RL=10kΩ LF=1Vrms Rg=10kΩ
--60
LR
Rch --80
--100 10
2 3
5 7 100
CH Sep -- f
2 3
5 7 10k
2 3
5 7100k ILA00934
--20
VCC=9V RL=10kΩ RR=1Vrms Rg=10kΩ
Channel separation, CH sep — dB
Channel separation, CH sep — dB
5 7 1k
CH Sep -- f
--20
--40
2 3
Input frequency, f — Hz
--60
RF
Lch --80
--100 10
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
Input frequency, f — Hz
2 3
5 7100k ILA00935
--40
VCC=9V RL=10kΩ RF=1Vrms Rg=10kΩ
--60
RR
Lch --80
--100 10
2 3
5 7 100
2 3
5 7 1k
2 3
5 7 10k
Input frequency, f — Hz
2 3
5 7100k ILA00936
Specifications of any and all SANYO 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. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification” for the SANYO product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of October, 2001. Specifications and information herein are subject to change without notice. PS No. 7139-5/5
