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PDF PBL40309 Data sheet ( Hoja de datos )
| Número de pieza | PBL40309 | |
| Descripción | 3.6 V Differential Power Amplifier for DECT Telecommunications system | |
| Fabricantes | Ericsson | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PBL40309 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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Preliminary
PABuLgu4s0t 3200090
PBL 403 09
3.6 V Differential Power Amplifier
for DECT Telecommunications system
Description.
Key features.
The PBL 403 09 is a differential two stage silicon MMIC power amplifier intended for • 27 dBm output power
use in handheld cordless terminals in the 1900 MHz band. It can deliver more than 27
dBm at 1900 MHz into a balanced 50 Ω load using a single 3.6 V supply. The circuit has • 25 dB small signal gain
a logic input to control transmit on/off and can be operated up to 100 % duty cycle with
minimum performance degradation. The circuit is housed in a specially designed • 50 % Power Added Efficiency
QSOP16 (150 mil body ) package and the implementation requires only few external
components.
• Simple logic on/off power control
25 GHz ft state-of-the-art deep trench isolated double-poly silicon bipolar process
with additional features for improved wireless performance has been used. On-chip • Battery charging conditions to 5.0 V
capacitors and inductors are used for the integrated internal matching network. Special
front-side metallized substrate contacts provide excellent ground paths from active • ESD protected
devices to the highly doped semiconductor substrate and package ground.
• Excellent ruggedness
• On-chip input and interstage
matching
• Differential input matched to 50 Ω
V CC
• Easy implementation with a simple
output matching network
RF In A
RF Out A & VCC
• Proven RF Silicon Technology
Reliability
• Low overall solution cost
Applications.
RF In B
RF Out B & VCC
• DECT
PoPwAe-rOCNontrol
Figure 1. Block diagram.
Figure 2. Package outlook.
1
1 page  
PBL 403 09
DECT RADIO WITH PBL402 15 TRANSCEIVER
PBL403 09 together with the transceiver chip PBL402 15 form the base of the radio platform for DECT systems. The transmission
part of the chip PBL402 15 has a differential output which can deliver up to 7 dBm. The output power can be programmed in steps.
The outputs are of open-collector type. Suitable network between PBL402 15 and PBL403 09 is therefore shunt inductors from the
open-collectors to Vcc and series capacitors to the RF inputs of PBL403 09. Suitable value of the capacitors is 1 to 5 pF in order to
compensate for the series inductance of the PCB and package. Input impedance of the PBL403 09 is 50 Ω differential.
The ideal collector load of the open collector RF output of PBL403 09 is about 11 Ω per side. A matching and combination network to
50 Ω single ended case is shown in fig.9. A shunt capacitor (2.7 pF) transforms each output to 50 Ω. Both 50 Ω outputs are AC coupled
and then combined with an LC-CL structure to a 50 Ω single ended output.
A power control signal with active low is received from PBL402 15. This signal controls power up/down of the PBL403 09.
Supply decoupling consists of high frequency and low frequency decoupling capacitors. The high frequency decoupling capacitor
should be placed close to the Vcc pin.
PA-ON
25
41 Vcc
PBL 402 15
38 Tx-
Tx+
39
33p 10n
100p 100p
3.9n 3.9n
1.5p
1.5p
81
3 PBL 403 09 14
6 11
68 68
nn
33p
33p
2.7p 2.7p
1.1p
5.6n
1.1p
5.6n
GND
output
Figure 9. DECT radio with PBL402 015 transceiver and PA.
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PBL40309.PDF ] | |
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