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PDF SE2438T Data sheet ( Hoja de datos )

Número de pieza SE2438T
Descripción Smart Energy Front-End Module
Fabricantes Skyworks 
Logotipo Skyworks Logotipo



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DATA SHEET
SE2438T: 2.4 GHz ZigBee®/Smart Energy Front-End Module
Applications
Smart meters
In-home appliances
Smart thermostats
Features
Integrated:
– PA with up to +16 dBm output power
– LNA with programmable bypass
– Transmit and receive switching function
+2.7 dB FEM Rx NF
Differential Rx/Tx interface with integrated balun
Fast switch on/off time <800 ns
2.0 V to 3.6 V supply operation
Sleep mode current 0.05 μA typical
QFN (20-pin, 3.0 mm x 3.0 mm x 0.55 mm) package
(MSL1 @ 260 °C per JEDEC J-STD-020)
Skyworks GreenTM products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of GreenTM, document number
SQ04–0074.
VCC1 1
VB_IN 2
TRXP 3
TRXN 4
N/C 5
15 N/C
14 N/C
13 ANT
12 CSD
11 CTX
VB_IN
TRXP
TRXN
Logic Control
PA
Balun
LNA
Figure 1. SE2438T Block Diagram
ANT
Y1854
Description
The SE2438T is a high-performance, fully integrated RF Front-End
Module (FEM) that is designed for ZigBee®/Smart Energy
applications.
The SE2438T is designed for ease of use and maximum flexibility,
with integrated fully matched input balun, integrated inter-stage
matching and harmonic filter, and digital controls that are
compatible with 1.6 V to 3.6 V Complementary Metal Oxide
Semiconductor (CMOS) levels.
The RF blocks operate over a wide supply voltage range from
2.0 V to 3.6V, which allows the SE2438T to be used in battery-
powered applications over a wide spectrum of the battery
discharge curve.
A functional block diagram is shown in Figure 1. The pin
configuration and package are shown in Figure 2. Signal pin
assignments and functional pin descriptions are provided in
Table 1.
Y0770
Figure 2. SE2438T Pinout—20-Pin QFN
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
202414H • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 24, 2015
1

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SE2438T pdf
DATA SHEET • SE2438T: 2.4 GHz SMART ENERGY/ZIGBEE FRONT-END MODULE
Table 6. SE2438T Electrical Specifications: AC Characteristics (Note 1)
(VCC = VCC1 = VCC2 = 3.0 V, TA = +25 C, Measured on the Evaluation Board [De-embedded to the Device],
All Unused Ports Terminated with 50 , Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Minimum Typical
Maximum
Units
Transmit (Tx)
Frequency range
Output power at ANT port
fIN
POUT_Hi
2400 2483 MHz
2400 MHz to 2483 MHz, OEVM = 1% typical:
VCC = VCC1 = VCC2 = 3.6 V
VCC = VCC1 = VCC2 = 3.3 V
VCC = VCC1 = VCC2 = 3.0 V
VCC = VCC1 = VCC2 = 2.0 V
VCC = VCC1 = VCC2 = 1.8 V
+16.0
+15.0
+14.0
+11.0
+9.5
dBm
Small signal gain high power mode
Small signal gain variation
Second and third harmonics
Bluetooth® V 1.0 and BLE spectral mask
Turn on and off times
Stability
S21_Hi
ΔS21
HD2, HD3
ACPR
tON
tOFF
STAB
2400 MHz to 2483 MHz
2400 MHz to 2483 MHz
Gain variation across all 802.15.4 channels
2400 MHz to 2483 MHz
IEEE 802.15.4 source
POUT = +14 dBm
Measured with the antenna match and filter
components per the SE2438T-EK1 evaluation
board
ACPR @ ± 2 channels
ACPR @ ± 3 channels
From 50% of the CTX edge to 90% of the final
RF output power.
From 50% of the CTX edge to 10% of the final
RF output power.
CW, PIN = +0 dBm
0.1 GHz to 20.0 GHz
Load VSWR = 6:1
14 dB
1 dBp-p
–42
dBm/
MHz
> –40
> –40
800
dB
dB
ns
All non-harmonically related outputs
<–35.0 dBm/MHz
Ruggedness
RU CW, PIN = +6 dBm, Load VSWR = 10:1
No permanent damage
Receive (Rx)
Frequency range
Rx gain high-gain mode
Rx gain low-gain mode
fIN
Rx_gain_HG
Rx_gain_LG
2400 MHz to 2483 MHz
2400 MHz to 2483 MHz
2400 2483 MHz
10.3 12.3 14.3 dB
5 7 9 dB
Rx noise figure (NF) high-gain mode
NF_HG
2400 MHz to 2483 MHz
2.7 dB
Rx NF low-gain mode
NF_LG
2400 MHz to 2483 MHz
+3.8 dB
Input 1 dB compression point high-gain mode IP1dB_HG 2400 MHz to 2483 MHz
–13 –8
dBm
Input 1 dB compression point low-gain mode IP1dB_LG
2400 MHz to 2483 MHz
–3 +2
dBm
Turn on and off times
tON From 50% of the CTX edge to 90% of the final
RF output power.
tOFF From 50% of the CTX edge to 10% of the final
RF output power.
800 ns
Gain in bypass mode
G_bp
–3.5 dB
Input 1 dB compression point in bypass mode IP1dB
+10 dBm
Note 1: Performance is guaranteed only under the conditions listed in this table.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
202414H • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 24, 2015
5

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SE2438T arduino
DATA SHEET • SE2438T: 2.4 GHz SMART ENERGY/ZIGBEE FRONT-END MODULE
19x 0.45
1
3.20 2
3
0.57 Typ 4
5
3.20
20x 0.20
20 19 18 17 16
Package
Outline
15
14
1.80
13
12
11
20x 0.55
3.30
1
2
3
4
5
3.30
20x 0.30
20 19 18 17 16
15
14
1.60
13
12
11
6 7 8 9 10
9x Ø0.254
0.400 Typ
0.57 Typ
1.80
6 7 8 9 10
0.400 Typ
1.60
Board Metal and Via Pattern
(Note 4)
Notes:
Solder Mask Pattern
(Note 6)
1. All dimensions are in millimeters.
2. Dimensions and tolerances according to ASME Y14.5M-1994.
3. Unless specified, dimensions are symmetrical about center lines.
4. Via hole recommendations: 30 to 35 µm Cu via wall plating (minimum),
via holes should be tented with solder mask on the back side and filled with solder.
5. Stencil recommendations: 0.125 mm stencil thickness, laser cut
apertures, trapezoidal walls and rounded corners offer better paste release.
6. Solder mask recommendations: contact board fabricator for recommended
solder mask offset and tolerance.
Figure 7. PCB Layout Footprint
20x 0.45
3.30
1
2
3
4
5
3.20
20x 0.20
20 19 18 17 16
15
14 0.10
13
12 0.625 Typ
11
6 7 8 9 10
0.400 Typ
0.10 0.625 Typ
Stencil Pattern
(Note 5)
61% solder coverage
on center pad
Y0774
e3
SiGe
2438T
XXXX
Pin 1
Indicator
Part Number
Lot Code
e3
SKY
2438T
XXXX
Figure 8. SE2438T Part Markings
(Top View)
Y1901
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
202414H • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 24, 2015
11

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