PAM8100

PAM8100
Green
3-VRMS Line Driver with Adjustable Gain
Description
Pin Assignments
The PAM8100 is a 3-VRMS pop-free stereo line driver designed to
allow the removal of the output DC-blocking capacitors for reduced
component count and cost. The device is ideal for single-supply
electronics where size and cost are critical design parameters.
TSSOP-14
The PAM8100 is capable of driving 3Vrms into a 2.5-kΩ load with 5-V
supply voltage. The device has differential inputs and uses external
gain-setting resistors to support a gain range of ±1 V/V to ±10 V/V.
The PAM8100 has built-in mute control for pop-free on/off control.
The PAM8100 has an external and internal undervoltage detector that
mutes the output.
Using the PAM8100 in audio products can reduce component count
considerably compared to traditional methods of generating a 3-Vrms
output.
+INR
+INL
-INR
-INL
OUTR
OUTL
SGND
UVP
MUTE
PGND
PVSS
PVDD
CN
CP
The PAM8100 is available in a 14-pin TSSOP.
Features
Applications









Eliminates Pop/Clicks
Eliminates Output DC-Blocking Capacitors
Provides Flat Frequency Response 20Hz20kHz
Low Noise and THD
SNR > 105 dB
Typical Vn < 13uVms
THD+N < 0.005%
Output Voltage Into 2.5-kΩ Load
2 Vrms With 3.3V Supply Voltage
3 Vrms With 5V Supply Voltage
Differential Input
External Undervoltage Mute
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
PDP / LCD TVs
Blu-ray Disc™, DVD Players
Home Theater in a Box
Set-Top Boxes

Typical Applications Circuit
R1
R3
1
R2
RIGHT
INPUT
+INR
+INL
14
R3
R3
2
- INR
C1
R2
- INL
13
C1
PAM8100
3
RIGHT
OUTPUT
OUTL
OUTR
4 SGND
UVP
R3
LEFT
INPUT
R2
12
LEFT
OUTPUT
11
R11
5
1uF
R1
C3
C2
-
R1
-
C3
R2
C1
C1
C2
C3
R1
+
C3
+
EN
PGND
6 PVSS
PVDD
7 CN
CP
R12
10
9
8
5V Supply
Linear Low
Drop
System Supply
1uF
1uF
Notes:
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
PAM8100
Document number: DS36986 Rev. 1 - 2
1 of 7
www.diodes.com
December 2015
© Diodes Incorporated
PAM8100
Pin Descriptions
Pin Number
Name
I/O
Description
1
+INR
I
Right-channel OPAMP positive input
2
-INR
I
Right-channel OPAMP negative input
3
OUTR
O
Right-channel OPAMP output
4
SGND
P
Signal ground
5
MUTE
I
Mute, active-high
6
PVSS
P
Supply voltage
7
CN
I/O
Charge-pump flying capacitor negative terminal
8
CP
I/O
Charge-pump flying capacitor positive terminal
9
PVDD
P
Positive supply
10
PGND
P
Power ground
11
UVP
I
Under voltage protection input
12
OUTL
O
Left-channel OPAMP output
13
-INL
I
Left-channel OPAMP negative input
14
+INL
I
Left-channel OPAMP positive input
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Symbol
Description
Supply Voltage
VDD
VALUE
UNIT
–0.3 to 6.0
V
VI
Input Pins
TA
Operating Free-Air Temperature Range
–40 to +85
°C
TJ
Operating Junction Temperature Range
–40 to +150
°C
Storage Temperature Range
–65 to +150
°C
TSTG
GND-0.3 to VDD + 0.3
V
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
Min
Nom
Max
Unit
VIN
Supply Voltage
-
2.5
-
5
V
RL
Load Impedance
-
0.6
10
-
kΩ
VIH
High-Level Input Voltage
MUTE
1.2
-
VIN
V
VIL
Low-Level Input Voltage
MUTE
-0.3
-
0.4
V
TA
Operating Free-Air Temperature
-40
25
+85
°C
Thermal Information
Parameter
Symbol
Package
Maximum
Unit
Thermal Resistance (Junction to Ambient)
θJA
TSSOP-14
35
°C/W
Thermal Resistance (Junction to Case)
θJC
TSSOP-14
14
°C/W
PAM8100
Document number: DS36986 Rev. 1 - 2
2 of 7
www.diodes.com
December 2015
© Diodes Incorporated
PAM8100
Electrical Characteristics
(@VDD=3.3V, TA=+25°C, RL=10kΩ, C(PUMP)=C(PVSS) =1μF , CIN=2.2μF, RIN=15kΩ, Rfb=30kΩ,
Unless otherwise specified.)
PARAMETER
Symbol
Conditions
Min
Typ
Max
Units
Output Offset Voltage
VOS
No load
-
-
3
mV
Power-Supply Rejection Ratio
PSRR
Input AC-GND,
f=1kHz,Vpp=200mV
-
70
-
dB
High-Level Output Voltage
VOH
VDD=3.3V
3.1
-
-
V
Low-Level Output Voltage
VOL
VDD=3.3V
-
-
-3.05
V
MUTE High
VIH
VDD=3.3V
1.5
-
-
V
MUTE Low
VIL
VDD=3.3V
-
-
0.4
V
No load, MUTE=VDD
-
10
-
mA
No load, MUTE=GND
-
10
-
mA
2.0
2.4
-
Vrms
Supply Current
Output Voltage (outputs in
phase)
Total Harmonic Distortion Plus
Noise
Crosstalk
Maximum Capacitive Load
IDD
Vo
THD=1%, VDD=3.3V, f=1kHz
THD+N
VO=2Vrms, f=1kHz
-
0.0015
-
%
CS
VO=1Vrms, f=1kHz
-
-110
-
dB
-
-
470
-
pF
Input AC-GND, A-weighted
-
13
-
uVrms
MCL
Noise Output Voltage
VN
Signal-to-Noise Ratio
SNR
VO=2Vrms, A-weighted
-
104
-
dB
External UnderVoltage Detection
VUVP
-
-
1.25
-
V
External Under-Voltage
Detection Hysteresis Current
IHYSI
-
-
5
-
µA
fCP
-
200
300
400
kHz
Charge Pump Frequency
PAM8100
Document number: DS36986 Rev. 1 - 2
3 of 7
www.diodes.com
December 2015
© Diodes Incorporated
PAM8100
Performance Characteristics (@TA=+25°C, VDD=3.3V, C(PUMP)=C(PVSS) =1μF , CIN=2.2μF, RIN=15 kΩ, Rfb=30kΩ,unless
otherwise specified.)
THD+N vs. Output Voltage (RL=10kΩ)
THD+N vs. Output Voltage (RL=600Ω)
10
10
5
5
f=100Hz/1kHz/10kHz
(Red/Pink/Blue)
2
2
1
1
0.5
0.5
0.2
%
%
0.2
0.1
0.1
0.05
0.05
0.02
f=100Hz/1kHz/10kHz
(Red/Pink/Blue)
0.02
0.01
0.01
0.005
0.005
0.003
100m
0.002
200m
300m
400m 500m
700m
1
2
3
V
0.0009
100m
200m
300m
400m 500m
700m
1
2
3
V
THD+N vs. Frequency (RL=10kΩ)
THD+N vs. Frequency (RL=600Ω)
1
0.5
1
VO=0.5Vrms/1 Vrms /2 Vrms
(Red/Pink/Blue)
0.5
VO=0.5Vrms/1 Vrms /2 Vrms
(Red/Pink/Blue)
0.2
0.2
0.1
0.1
0.05
%
%
0.05
0.02
0.02
0.01
0.01
0.005
0.005
0.002
0.001
0.002
20
0.0006
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
50
100
200
500
1k
2k
5k
10k
20k
Hz
Crosstalk vs. Frequency (RL=10kΩ)
Gain vs. Frequency (RL=10kΩ)
+8
-70
-76
-82
VO=1Vrms, Vref=1V
Red---Left to Right
Blue---Right to Left
+6.4
-88
-94
d
B
+4.8
-100
d
B
g
-106
A
+3.2
-112
-118
+1.6
-124
-130
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
+0
20
50
100
200
500
1k
2k
5k
10k
20k 30k
Hz
PAM8100
Document number: DS36986 Rev. 1 - 2
4 of 7
www.diodes.com
December 2015
© Diodes Incorporated
PAM8100
Ordering Information
PAM8100 X X X
Package Type
R: TSSOP
Pin Configuration
R: 14 Pin
Shipping Package
R: Tape & Real
Part Number
Package Type
Shipping
PAM8100RRR
TSSOP-14
2,500/Tape & Real
Marking Information
TSSOP-14
PAM8100
XXXYW
XXX: Internal Code
Y: Year: 1, 2, 3 ~
W: Week: "A~Z" means week
1 to week 26; "a~y" mean
week 27 to 51, "z" means 52
and 53
PAM8100
Document number: DS36986 Rev. 1 - 2
5 of 7
www.diodes.com
December 2015
© Diodes Incorporated
PAM8100
Package Outline Dimensions (All dimensions in mm.)
0.25
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
B
Gauge Plane
Seating Plane
L
F1
a2
Pin# 1 Indent
F
Detail ‘A’
G
K
A
a1
D
C
TSSOP-14
Dim
Min
Max
a1
7° (4X)
a2
8°
0
A
4.9
5.10
B
4.30
4.50
C
1.2

D
0.8
1.05
F
1.00 Typ
F1
0.45
0.75
G
0.65 Typ
K
0.19
0.30
L
6.40 Typ
All Dimensions in mm
Detail ‘A’
Suggested Pay Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
X
C1
Dimensions Value (in mm)
X
0.45
Y
1.45
C1
5.9
C2
0.65
C2
Y
PAM8100
Document number: DS36986 Rev. 1 - 2
6 of 7
www.diodes.com
December 2015
© Diodes Incorporated
PAM8100
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2015, Diodes Incorporated
www.diodes.com
PAM8100
Document number: DS36986 Rev. 1 - 2
7 of 7
www.diodes.com
December 2015
© Diodes Incorporated