NLAS54404
Ultra-Low THD Stereo SPDT
Switch with Independent
Channel Selects
The NLAS54404 is a single supply, bidirectional, dual single−pole/
double−throw (SPDT) ultra-low distortion, high OFF−Isolation
analog switch that can pass analog signals that are positive and
negative with respect to ground. It is primarily targeted at consumer
and professional audio switching applications such as computer sound
cards and home theater products. The inputs can accommodate ground
referenced signals up to 2.0 V
RMS
while operating from a single 3.3 V
DC supply. The digital logic inputs are 1.8 V logic−compatible. It is
used in DC−coupled ground-referenced applications.
With −118 dB THD+N performance with a 2.0 V
RMS
signal into
20 kW load, superior signal muting, high PSRR and very flat
frequency response, the NLAS54404 meets the exacting requirements
of consumer and professional audio engineers.
Features
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WLCSP12
FC SUFFIX
CASE 567LG
MARKING DIAGRAM
AAA
AYWW
•
•
•
•
•
•
•
•
•
•
•
•
•
Dual SPDT Switch or 2-to-1 MUX
Independent Channel Selects
2.0 V
RMS
Signal Switching from 3.3 V Supply
−118 dB THD+N into 20 kW Load at 2.0 V
RMS
−108 dB THD+N into 32
W
Load at 3.9 mW
Signal to Noise Ratio: > 119 dBV
±0.003
dB Insertion Loss at 1 kHz, 20 kW Load
±0.01
dB Gain Variation 20 Hz to 20 kHz
113 dB Signal Muting into 32
W
Load
126 dB PSRR 20 Hz to 20 kHz
Single Supply Operation: 3.3 V
12−Ball WLCSP, 1.6 mm x 1.2 mm
This Device is Pb−Free, Halogen Free/BFR Free and is RoHS
Compliant
Computer Sound Cards
Home Theater Audio Products
SACD / DVD Audio
DVD Player Audio Output Switching
Headsets for MP3 / Cellphone Switching
Hi−Fi Audio Switching Application
A
= Assembly Location
Y
= Year
WW = Work Week
ORDERING INFORMATION
Device
NLAS54404FCTAG
Package
WLCSP12
(Pb−Free)
Shipping
†
3000 / Tape
& Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
Applications
•
•
•
•
•
•
©
Semiconductor Components Industries, LLC, 2015
1
August, 2015 − Rev. 0
Publication Order Number:
NLAS54404/D
NLAS54404
VDD
L1
L
L2
R1
R
R2
SEL_L
SEL_R
MUTE
CAP_SS
LOGIC CONTROL
GND
NLAS54404
Figure 1. Block Diagram
Table 1. FUNCTION TABLE
Inputs
MUTE
0
0
0
0
1
SEL_L
0
0
1
1
X
SEL_R
0
1
0
1
X
L1
ON
ON
OFF
OFF
OFF
L2
OFF
OFF
ON
ON
OFF
Outputs
R1
ON
OFF
ON
OFF
OFF
R2
OFF
ON
OFF
ON
OFF
NOTE: MUTE: Logic “0”
≤
0.5 V, Logic “1”
≥
1.4 V or float.
SEL_L, SEL_R: Logic “0”
≤
0.5 V, Logic “1”
≥
1.4 V.
X = Don’t Care
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2
NLAS54404
Figure 2. WLCSP−12 – Top Through View
Table 2. PIN DESCRIPTIONS
Pin Name
VDD
GND
CAP_SS
MUTE
SEL_R
SEL_L
R
L
R1
L1
R2
L2
Ball
B2
C2
B3
C3
D1
A1
C1
B1
D2
A2
D3
A3
Description
System power supply pin (+3 V to +3.6 V)
Ground connection
Turn−on delay capacitor pin
Signal mute control pin
Input select control pin for Right
Input select control pin for Left
Analog switch common pin for Right
Analog switch common pin for Left
Analog switch normally closed pin for Right
Analog switch normally closed pin for Left
Analog switch normally open pin for Right
Analog switch normally open pin for Right
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3
NLAS54404
MAXIMUM RATINGS
Symbol
V
DD
V
IS
V
IN
I
IO
I
IO_PK
P
D
T
L
T
J
q
JA
T
s
MSL
F
R
ESD
I
L
Positive DC Supply Voltage
Analog Input/Output Voltage (L
1
, L
2
, R
1
, R
2
, L, R)
Digital Select Input Voltage (SEL, MUTE, AC/DC, DIR_SEL)
Switch Continuous Current (L
1
, L
2
, R
1
, R
2
, L, R)
Switch Peak Current (L
1
, L
2
, R
1
, R
2
, L, R)
(Pulsed 1ms, 10% Duty Cycle, Max).
Power Dissipation in Still Air
Lead Temperature, 1 mm from Case for 10 seconds
Junction Bias Under Bias
Thermal Resistance
Storage Temperature
Moisture Sensitivity
Flammability Rating
ESD Protection
Oxygen Index: 30% − 35%
Human Body Model
Machine Model
Rating
Value
−0.5 to +4.1
−3.1 to V
DD
+ 0.5
−0.5 to V
DD
+ 0.5
±300
±500
800
260
150
80
−65 to +150
Level 1
UL94−V0 (0.125 in)
> 4000
> 100
±300
V
mA
Unit
V
V
V
mA
mA
mW
°C
°C
°C/W
°C
Latch−up Current, Above V
CC
and below GND at 125_C (Note 1)
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Tested to EIA/JESD78.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
DD
V
S
V
IN
T
A
Positive 3V DC Supply Voltage
Switch Input / Output Voltage (L
1
, L
2
, R
1
, R
2
, L, R)
Digital Select Input Voltage
Operating Temperature Range
Parameter
Min
3.0
−2.9
GND
−40
Max
3.6
V
DD
V
DD
+85
Unit
V
V
V
°C
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
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4
NLAS54404
DC ELECTRICAL CHARACTERISTICS
(Voltages referenced to GND)
3.3 V Supply:
V
DD
= +3.0 V to +3.6 V, GND = 0 V, V
SIGNAL
= 2.0 VRMS, R
LOAD
= 20 kW , f = 1 kHz, V
SELH
= V
MUTEH
= 1.4 V, V
SELL
=
V
MUTEL
= 0.5 V, CAP_SS = 0.1
mF,
(Note 2), Unless otherwise specified.
Parameter
Test Conditions
Supply (V)
Temp
Min
(°C)
(Notes 3, 4)
Max
Typ
(Notes 3, 4)
Units
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range,
V
ANALOG
ON−Resistance, r
ON
V
DD
= 3.3 V, I
R
or I
L
= 80 mA, V
Lx
or V
Rx
= −2.828 V to +2.828 V (See Figure 6)
r
ON
Matching Between
Channels,
Dr
ON
r
ON
Flatness,
r
FLAT(ON)
L, R, Lx, Rx Pull−
down
Resistance
V
DD
= 3.3 V, I
R
or I
L
= 80 mA, V
Lx
or V
Rx
= Voltage at max r
ON
over −2.828 V to
+2.828 V (Note 7)
V
DD
= 3.3 V, I
R
or I
L
= 80 mA, V
Lx
or V
Rx
= −2.828 V, 0 V, +2.828 V (Note 5)
V
DD
= 3.6 V, V
Lx
or V
Rx
= −2.83 V, 2.83 V,
V
L
or V
R
= −2.82 V, 2.83 V, V
AC/DC
= 0 V,
V
MUTE
= 3.6 V, measure current,
calculate resistance.
3.6
3.3
3.3
3.3
Full
25
Full
25
Full
3.3
25
Full
25
Full
−
−
−
−
−
−
−
225
−
2.0
2.1
2.3
0.0042
0.043
0.021
0.051
300
345
−
−
−
−
−
0.055
−
375
−
kW
W
W
V
RMS
W
DYNAMIC CHARACTERISTICS
THD+N
V
SIGNAL
= 2 V
RMS
, f = 1 kHz, A−weighted
filter, R
LOAD
= 20 kW
V
SIGNAL
= 1.9 V
RMS
, f = 1 kHz,
A−weighted filter, R
LOAD
= 20 kW
V
SIGNAL
= 1.8 V
RMS
, f = 1 kHz,
A−weighted filter, R
LOAD
= 20 kW
V
SIGNAL
= 0.707 V
RMS
, f = 1 kHz,
A−weighted filter, R
LOAD
= 32
W
SNR
Insertion Loss, G
ON
Gain vs Frequency, G
f
Stereo Channel Imbal-
ance L
1
and R
1
, L
2
and R
2
OFF−Isolation (Muting)
f = 20 Hz to 20 kHz, A−weighted filter,
inputs grounded, R
LOAD
= 20 kW or 32
W
f = 1 kHz, R
LOAD
= 20 kW
f = 20 Hz to 20 kHz, R
LOAD
= 20 kW, ref-
erence to G
ON
at 1 kHz
f = 20 Hz to 20 kHz, R
LOAD
= 20 kW
3.3
3.3
3.3
3.3
3.3
25
25
25
25
25
25
25
25
−
−
−
−
−
−
−
−
< −118
< −117
< −116
< −108
> 119
±0.003
±0.01
±0.006
−
−
−
−
−
−
−
−
dBV
dB
dB
dB
dB
f = 20 Hz to 22 kHz, L = R = 2 V
RMS
,
R
LOAD
= 20 kW, MUTE = 3.3 V,
SEL_L/SEL_R = “X”
f = 20 Hz to 22 kHz, V
L
or V
R
=
0.7 V
RMS
, R
LOAD
= 32
W
3.3
25
−
105
−
dB
25
3.3
25
−
−
112
90
−
−
dB
Crosstalk (Channel−
to− Channel)
R
L
= 20 kW, f = 20 Hz to 20 kHz,
V
SIGNAL
= 2 V
RMS
, signal source
impedance = 20
W,
(Note 8)
R
L
= 32
W,
f = 20 Hz to 20 kHz,
V
SIGNAL
= 0.7 V
RMS
, signal source
impedance = 20
W,
(Note 8)
25
−
112
−
PSRR
f = 1 kHz, V
SIGNAL
= 100 mV
RMS
,
inputs grounded
3.3
25
−
131
−
dB
2. V
IN
= input voltage to perform proper function.
3. The algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
4. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by charac-
terization and are not production tested.
5. Flatness is defined as the difference between maximum and minimum value of ON−resistance at the specified analog signal voltage points.
6. Limits established by characterization and are not production tested.
7. r
ON
matching between channels is calculated by subtracting the channel with the highest max r
ON
value from the channel with lowest max
r
ON
value.
8. Crosstalk is inversely proportional to source impedance.
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