PAM8019
Document number: DS38822 Rev. 1 - 2
1 of 12
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ADVANCED I NF ORMATION
PAM8019
NEW PR ODUC T
3W STEREO CLASS-D AUDIO AMPLIFIER AND CLASS AB HEADPHONE DRIVER
WITH DC VOLUME CONTROL, NON-CLIP POWER LIMIT AND UVP
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
- and Antimony-
free, "Green" and Lead-free.
3. Halogen- and Antimony-
Br + Cl) and <1000ppm antimony compounds.
Description
The PAM8019 is a Stereo 3W Class D audio power amplifier for
driving bridged-tied speakers and includes a Stereo Class AB amplifier
for driving headphones. The advanced 64 step DC volume control
minimizes external components allowing simple and accurate volume
control over the gain range of +20dB (Volume=0V) to -60dB
(Volume=5V).
Integrated non-clip power limit technology suppresses output
automatically with programmable power limit, improving the sound
quality and helping to protect the speakers. Programmable under
voltage protection (UVP) can be used to shut down the PAM8019 at a
pre-determined voltage level helping to eliminate speaker pop by
shutting down before the power supply collapses.
The PAM8019 is available in the power efficient and space saving
U-QFN4040-20.
Pin Assignments
Top View
ROUTN
HPROUT
SD
Bypass
RIN
GND
LIN
Volume
Mute
HP/SPK
LOUTN
HPLOUT
VDD
UVP
PL
VDD
ROUTP
GND
LOUTP
VDD
1
20
GND
Features
3W Stereo Class D Amplifier with Class AB Headphone Amplifier
Filter Free and Low EMI Architecture
Operating Voltage: 2.8V to 5.5V
Low Quiescent Current of 7mA at a VDD of 5V
64 Step DC Volume Control with Hysteresis from -60dB to +20dB
Output Power
- Class D Amplifier THD+N=1%
VDD=5V,Load =4; Po=2.4W / Load =8; Po=1.4W
- Class D Amplifier THD+N=10%
VDD=5V, Load =4; Po=3.0W / Load =8; Po=1.7W
- Class AB Headphone Amplifier
VDD=5V, Load=32; Po=60mW
Speaker or Headphone Select
Non Clip Power Limit (NCPL) Function
OVP and Programmable UVP Protection
Thermal and Over-Current Protection with Auto-Recovery
Power Enhance Package U-QFN4040-20
Lead Free and Green Devices Available (RoHS Compliant)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green Device (Note 3)
Applications
LCD Monitors and TVs
Projectors / All-In-One Computers
Portable / Active Speakers
Portable DVD Players / Game Machines
PAM8019
Document number: DS38822 Rev. 1 - 2
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PAM8019
NEW PR ODUC T
Typical Applications Circuit
Gate
Driver
Gate
Driver
OSC.
Shut Down
Bias and
Vref
LIN
RIN
GND
VDD
LOUTP
LOUTN
-
+
Volume
Control
PWM Modulator
Gate
Driver
Gate
Driver
VDD
ROUTP
ROUTN
Volume
Control
PWM Modulator
Short Crt.
Protect
UVLO
Over Temp.
Protection
Mute
Bypass
Volume
Control
-
+
Controller
Controller
HP/Spk
Controller
HPLOUT HPROUT
SD
Mute
PL
Bypass
Volume
Speaker 4 Ω
Speaker 4 Ω
CS3
0.1mF
CS2
0.1mF
CS1
0.1mF
VDD
C3
220mF
R4
100kΩ
R5
VDD
Ci2
1mF
Right Channel
Input Signal
Ci1
1mF
Left Channel
Input Signal
C1 1mF
CB
2.2mF
R6
50kΩ
R7
R8
VDD
C2
220mF
R3
R2
R1
VDD
7
3
9
11
4
8
5
10
14 2 12 6, 18
1
19
20
15
17
16
VDD
13
CS4
0.1mF
Power
Limit
HP/SPK
VDD
PAM8019
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Pin Descriptions
Name
Function

Full Chip Shutdown Control Input (Active Low)
Bypass
Bias Voltage for Power Amplifier
RIN
Negative Input of Right Channel Power Amplifier
GND
Ground Connection
LIN
Negative Input of Left Channel Power Amplifier
Volume
Internal Gain Setting Input
Connect to VDD which Set Max. Gain = +20dB
Mute
Mute Control Signal Input (Active High)
HP/
Output Mode Control Input
High for Headphone Mode and Low for Speaker Mode
PL
Power limit reference voltage, see applications section for further details
UVP
Under Voltage Protection Input
See applications section for further details
VDD
Supply Voltage
HPLOUT
Headphone - Left Channel Output
HPROUT
Headphone - Right Channel Output
LOUTN
Power Amplifier - Left Channel Negative Output
LOUTP
Power Amplifier - Left Channel Positive Output
ROUTP
Power Amplifier - Right Channel Negative Output
ROUTN
Power Amplifier - Right Channel Positive Output
GND
Connect to ground (recommended) or No Connect.
Functional Block Diagram
Gate
Driver
Gate
Driver
OSC.
Shut Down
Bias and
Vref
LIN
RIN
VDD
LOUTP
LOUTN
-
+
Volume
Control
PWM Modulator
Gate
Driver
Gate
Driver
ROUTP
ROUTN
Volume
Control
PWM Modulator
Short Crt.
Protect
UVLO
Over Temp.
Protection
Mute
Power
Limit
Bypass
Volume
Control
-
+
Controller
Controller
HP/Spk
Controller
HPLOUT HPROUT
Mute
PL
Bypass
Volume
SD
HP/SPK
VDD
PAM8019
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Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) (Note 4)
Symbol
Parameter
Rating
Unit
VDD
Supply Voltage VDD
-0.3 to 6.0
V
VIN
Input Voltage LIN, RIN, , Mute, HP/
-0.3 to VDD + 0.3
TJ
Maximum Junction Temperature
+150
°C
TSTG
Storage Temperature Range
- 65 to +150
TSDR
Maximum Soldering Temperature Range, 5 Seconds
+300
Notes: 4. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
Max
Unit
VDD
Supply Voltage Range
2.8 to 5.5
V
VIH
High Level Threshold Voltage
, MUTE
2 to VDD
V
HP/
0.8 x VDD to VDD
V
VIL
Low Level Threshold Voltage
, MUTE
0 to 0.8
V
HP/
0 to 1.0
V
VICM
Common Mode Input Voltage
1 to VDD - 1
V
TA
Ambient Operation Temperature Range
-40 to +85
°C
TJ
Junction Temperature Range
-40 to +125
Thermal Information (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
Typical Value
Unit
JA
Thermal Resistance Junction to Ambient QFN4040-20
45
°C/W
JC
Ambient Operation Temperature Range QFN4040-20
7
°C /W
PAM8019
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Electrical Characteristics (@TA = +25°C, VDD = 5V, Gain = Max., RL=8, unless otherwise specified.)
Symbol
Parameter
Condition
Min
Typ
Max
Unit
VDD
Supply Voltage Range
2.8
-
5.5
V
Speaker Mode
IQ
Quiescent Current (BTL)
VMUTE=0, VSD=5V, No Load
-
7
-
mA
IQ
Quiescent Current (SE)
VMUTE=0, VSD=5V, No Load
-
4
-
mA
IMUTE
Mute Current (BTL)
VMUTE=0, VSD=5V, No Load
-
3
-
mA
IMUTE
Mute Current (SE)
VMUTE=0, VSD=5V, No Load
-
4
-
mA
ISD
Shutdown Current
VMUTE=0, VSD=0V, No Load
-
-
1
µA
FOSC
Oscillator Frequency
-
200
250
300
KHz
RI
Input Resistance (BTL)
Gain=20dB
-
-
33
K
RI
Input Resistance (SE)
Gain=3.5dB
-
-
56
K
VOS
Output Offset Voltage
No load
-
10
-
mV
RDS(ON)
Drain Source On-State
Resistance
VDD =5.5V, IDS=0.8A
P MOSFET
-
0.26
-
VDD =5.5V, IDS=0.8A
N MOSFET
-
0.19
-
VDD =4.5V, IDS=0.6A
P MOSFET
-
0.28
-
VDD =4.5V, IDS=0.6A
N MOSFET
-
0.21
-
VDD =3.6V, IDS=0.4A
P MOSFET
-
0.29
-
VDD =3.6V, IDS=0.4A
N MOSFET
-
0.21
-
TSTART UP
Startup Time from Shutdown
Bypass Capacitor, CB=2.2µF
-
1.72
-
S
PO
Output Power
THD+N=10%, f=1KHz, Rl=8
1.5
1.7
-
W
THD+N=10%, f=1KHz, Rl=4
2.8
3.0
-
THD+N
Total Harmonic Distortion Plus
Noise
Rl=8, Po=0.8W, f=1KHz
-
0.08
-
%
Rl=4, Po=1.6W, f=1KHz
-
0.08
-
PSRR
Power Supply Ripple Rejection
Input AC-GND, f=1KHz, VPP=200mV
-
- 61
-
dB
CS
Channel Separation
VDD =1W, f=1KHz
-
-82
-
dB
η
Efficiency
PO =1.7W, f=1KHz, Rl=8
85
90
-
%
PO =3W, f=1KHz, Rl=4
80
88
-
VN
Noise
Input AC-GND, A-weighting
-
180
-
µV
Non A-weighting
-
270
-
µV
SNR
Signal Noise Ratio
F=20 ~ 20KHz, THD=1%
-
83
-
dB
Head Phone Mode
VOS
Output Offset Voltage
No load
-
2.5
-
V
PO
Output Power
THD+N=1%, Rl=32, f=1KHz
-
60
-
mW
THD+N
Total Harmonic Distortion Plus
Noise
Rl=32, Po=50mW, f=1KHz
-
0.02
-
%
PSRR
Power Supply Ripple Rejection
Input AC-GND,F=1KHz,VPP=200mV
-
75
-
dB
CS
Channel Separation
PO =1W, f=1KHz
-
-87
-
dB
VN
Noise
Input AC-GND, A-weighting
-
74
-
µV
Non A-weighting
-
58
-
µV
SNR
Signal Noise Ratio
F=20 ~ 20KHz, THD=1%
-
89
-
dB
Control Section
VIH
 Input High
-
1.4
-
-
V
VIL
 Input Low
-
-
-
0.6
V
VMH
Mute Input High
-
1.4
-
-
V
VML
Mute Input Low
-
-
-
0.6
V
OTP
Over Temperature Protection
-
-
+150
-
°C
OTH
Over Temperature Hysteresis
-
-
+108
-
°C
PAM8019
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PAM8019
NEW PR ODUC T
Typical Performance Characteristics
THD+N vs. Output Power - Speaker
THD+N vs. Frequency - Speaker
Crosstalk vs. Frequency - Speaker
0.01
50
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
%
1m
3
2m
5m
10m
20m
50m
100m
200m
500m
1
2
W
0.01
50
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
%
1m
5
2m
5m
10m
20m
50m
100m
200m
500m
1
2
W
0.03
10
0.05
0.1
0.2
0.5
1
2
5
%
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
0.06
10
0.1
0.2
0.5
1
2
5
%
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
VDD=5v
RL+33mH
THD+N≦10%
Av=20dB
AUX-0025
AES-17(20KHz)
F=100Hz / 1KHz / 10KHz
VDD=5v
RL=4+33mH
THD+N≦10%
Av=20dB
AUX-0025
AES-17(20KHz)
F=100Hz / 1KHz / 10KHz
VDD=5v
RL
Av=20dB
AUX-0025
AES-17(20KHz)
Po=0.3W / 0.5W / 0.8W
VDD=5v
RL=4
Av=20dB
AUX-0025
AES-17(20KHz)
Po=0.5W / 1W / 1.5W
-100
+0
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
d
B
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
VDD=5v
Vo=1Vrms
RL
Av=20dB
AUX-0025
AES-17(20KHz)
R-Channel to L-Channel
R-Channel to L-Channel
-100
+0
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
d
B
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
VDD=5v
Vo=1Vrms
RL=4
Av=20dB
AUX-0025
AES-17(20KHz)
R-Channel to L-Channel
R-Channel to L-Channel
PAM8019
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NEW PR ODUC T
Typical Performance Characteristics (Cont.)
PSRR vs. Frequency
Output Noise vs. Frequency – Speaker
-120
+0
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
-80
+0
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
d
B
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
VDD=5v
RL
Av=20dB
VRR=200mVPP
AUX-0025
AES-17(20KHz)
-80
+0
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
d
B
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
VDD=5v
RL=4
Av=20dB
VRR=200mVPP
AUX-0025
AES-17(20KHz)
-120
+0
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
-120
+0
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
-120
+0
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
-120
+0
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
VDD=2.8v ~ 5.5v
RL+2*33uH
Av=20dB
Input AC Ground
AUX-0025
AES-17(20KHz)
VDD=2.8v ~ 5.5v
RL=4+2*33uH
Av=20dB
Input AC Ground
AUX-0025
AES-17(20KHz)
VDD=2.8v / 3.3v / 3.6v / 4.2v / 5v / 5.5v
VDD=2.8v / 3.3v / 3.6v / 4.2v / 5v /
5.5v
PAM8019
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NEW PR ODUC T
Typical Performance Characteristics (Cont.)
Table 1 DC Volume Control
Step DC Volume (V)
Power Amp
Gain (dB)
Head Phone
Amp Gain
(dB)
Step DC Volume (V)
Power Amp
Gain (dB)
Head Phone
Amp Gain
(dB)
1 0.000 to 0.201 20 3.51 33 2.462 to 2.533 6.7 -7.11
2 0.202 to 0.275 19.6 3.22 34 2.534 to 2.605 6.4 -7.43
3 0.276 to 0.347 19.2 2.94 35 2.606 to 2.678 6 -7.76
4 0.348 to 0.419 18.8 2.66 36 2.679 to 2.751 5.7 -8.09
5 0.420 to 0.491 18.4 2.39 37 2.752 to 2.823 5.3 -8.42
6 0.492 to 0.563 18 2.12 38 2.824 to 2.897 4.9 -8.76
7 0.564 to 0.633 17.6 1.85 39 2.898 to 2.969 4.6 -9.09
8 0.634 to 0.701 17.1 1.46 40 2.970 to 3.043 4.2 -9.43
9 0.702 to 0.771 16.6 1.07 41 3.044 to 3.114 3.8 -9.77
10 0.772 to 0.849 16.1 0.69 42 3.115 to 3.186 3.5 -10.1
11 0.850 to 0.929 15.6 0.32 43 3.187 to 3.259 3.1 -10.46
12 0.930 to 1.005 15.1 -0.05 44 3.260 to 3.332 2.7 -10.81
13 1.006 to 1.079 14.6 -0.41 45 3.333 to 3.403 2.3 -11.16
14 1.080 to 1.153 14.2 -0.77 46 3.404 to 3.476 2 -11.52
15 1.154 to 1.225 13.7 -1.12 47 3.477 to 3.551 1.6 -11.88
16 1.226 to 1.297 13.3 -1.47 48 3.552 to 3.621 1.2 -12.24
17 1.298 to 1.371 12.9 -1.82 49 3.622 to 3.695 0.8 -12.62
18 1.372 to 1.443 12.5 -2.16 50 3.696 to 3.767 0.4 -12.99
19 1.444 to 1.517 12 -2.5 51 3.768 to 3.839 0 -13.38
20 1.518 to 1.589 11.6 -2.84 52 3.840 to 3.909 -1 -14.37
21 1.590 to 1.661 11.2 -3.18 53 3.910 to 3.979 -2.1 -15.42
22 1.662 to 1.733 10.8 -3.51 54 3.980 to 4.045 -3 -16.3
23 1.734 to 1.807 10.5 -3.84 55 4.046 to 4.116 -5 -18.23
24 1.808 to 1.879 10.1 -4.17 56 4.117 to 4.195 -7 -20.16
25 1.880 to 1.951 9.7 -4.5 57 4.196 to 4.273 -9 -22.08
26 1.952 to 2.025 9.3 -4.82 58 4.274 to 4.347 -10.9 -23.96
27 2.026 to 2.097 8.9 -5.16 59 4.348 to 4.421 -17 -30.01
28 2.098 to 2.169 8.6 -5.48 60 4.422 to 4.493 -22.8 -35.83
29 2.170 to 2.243 8.2 -5.8 61 4.494 to 4.565 -29 -41.98
30 2.244 to 2.315 7.8 -6.13 62 4.566 to 4.637 -33.5 -46.46
31 2.316 to 2.389 7.5 -6.45 63 4.638 to 4.708 -39.5 -52.58
32 2.390 to 2.461 7.1 -6.78 64 4.709 to 5.000 -60 -92.95
PAM8019
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Application Information
Non Clip Power Limit (NCPL) Function
When output reaches the maximum power setting value, the NCLP circuits will decrease the gain to prevent the output waveform from clipping
helping to prevent speaker damage and maximizing audio performance. The PL pin is used to set and control the NCPL function.
Table 1: NCPL Setting Threshold vs. Output
AGC Function
Output Power
VDD to VDDx0.45 or
PL pin floating
NCPL function disabled
VDD x 0.45 to VDD x 0.27
PO=[[8(1/2 VDD -VPL)^2]/RI] x 0.95
VDD x 0.27 to GND
PO =2.3W 
PO 
Mute Operation
The MUTE pin is an input for controlling the Class-D output state of the PAM8019. A logic low on this pin enables the outputs and logic high on this
pin disables the outputs. This pin may be used to quickly disable or enable the outputs without a volume fade. Quiescent current is listed in the
electrical characteristic table. The MUTE pin can be left floating due to the internal pull-down.
Shutdown Operation
In order to reduce power consumption while not in use, the PAM8019 contains shutdown circuit to turn off the amplifiers bias circuit. The amplifier
is turned off when logic low is placed on the  pin. The  pin can be left floating due to the internal pull-up.
Under voltage Protection
External under voltage detection can be used to shut down the PAM8019 before an input device can generate a pop. The shutdown threshold at
the UVP pin is 1.2V. The user selects a resistor divider to obtain the shutdown threshold and hysteresis for the specific application.
The threshold can be determined as below:
With the condition: R3 >> R1//R2
VUVP = [1.2-(6µA x R3)] x (R1+R2)/ R2
Hysteresis = 5µA x R3 x (R1+R2)/ R2
Power Supply Decoupling
The PAM8019 is a high performance CMOS audio-amplifier that requires adequate power supply decoupling to ensure the THD and PSRR are as
low as possible. Power supply decoupling also prevents oscillation caused by long leads between the amplifier and the speaker. The optimum
decoupling is achieved by using two capacitors of different types that target different types of noise on the power supply leads. A good Low-
Equivalent-Series-Resistance (ESR) ceramic-capacitor of typically 0.1µF is recommended to be placed as close as possible to the VDD pin to filter
the higher frequency transients, spikes or digital hash on the line. Filtering lower-frequency noise signals a large capacitor of 10µF or greater should
be placed near the audio amplifier.
PAM8019
Document number: DS38822 Rev. 1 - 2
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Application Information (Cont.)
Input Capacitor (CI)
It is desirable to use a large input capacitor but in applications where the speaker lacks the ability to reproduce signals below 100Hz to 150Hz it
may be possible to minimize CI without effecting system performance. Input Capacitor (CI) and Input Resistance (RI) of the amplifier form a high-
pass filter with the corner frequency determined equation below:
I x CI
In addition to system cost and size, click and pop performance is affected by the size of the coupling capacitors. A larger in/out coupling capacitor
requires more charge to reach its quiescent DC voltage (Normally 1/2 VDD). This charge comes from the internal circuit via the feedback and is
more likely to create pops upon device enable. Minimizing the capacitor size based on necessary low frequency response can minimize the turn on
pop.
Bypass Capacitor (CBYP)
Bypass Capacitor (CBYP) is the most critical capacitor and serves several important functions. During start-up or recovery from shutdown mode,
CBYP determines the rate at which the amplifier starts up. The second function is to reduce noise produced by the power supply caused by coupling
into the output signal. The noise is from the internal analog reference to the amplifier, which appears as degraded PSRR and THD+N.
A ceramic bypass capacitor (CBYP) of 0.47µF to 1.0µF is recommended for the best THD and noise performance. Increasing the bypass capacitor
reduces clicking and popping noise from power on/off and when entering and leaving shutdown.
Ordering Information
PAM8019 X X – X
Pin ConfigurationPackageProduct Name
G: 20 R : Tape & Reel
Packing
K:QFN4x4
Part Number
Package
Standard Package
PAM8019KGR
U-QFN4040-20
3000 / Tape and Reel
Marking Information
P8019
XXXYW
Y: Year
W: Week
X: Internal Code
PAM8019
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Package Outline Dimensions (All dimensions in mm.)
Please see http://www.diodes.com/package-outlines.html for the latest version.
U-QFN4040-20
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
U-QFN4040-20
Dimensions
Value
(in mm)
C
0.500
X
0.350
X1
0.600
X2
2.500
X3
4.300
Y
0.600
Y1
0.350
Y2
2.500
Y3
4.300
1
Y3
X3
Y1
X1
Y2
X2
XC
Y
U-QFN4040-20
Dim
Min
Max
Typ
A
0.55
0.65
0.60
A1
0
0.05
0.02
A3
-
-
0.15
b
0.20
0.30
0.25
D
3.95
4.05
4.00
D2
2.40
2.60
2.50
E
3.95
4.05
4.00
E2
2.40
2.60
2.50
e
0.50 BSC
L
0.35
0.45
0.40
Z
-
-
0.875
All Dimensions in mm
D
D2
E
b
L
E2
A
A1 A3
(Pin #1 ID)
Seating Plane
Z (8x)
e
PAM8019
Document number: DS38822 Rev. 1 - 2
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