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PDF SA1921 Data sheet ( Hoja de datos )
| Número de pieza | SA1921 | |
| Descripción | Satellite and cellular dual-band RF front-end | |
| Fabricantes | Philips | |
| Logotipo |  |
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INTEGRATED CIRCUITS
SA1921
Satellite and cellular dual-band RF
front-end
Product specification
Supersedes data of 1998 Sep 11
IC17 Data Handbook
1999 Mar 02
Philips
Semiconductors
1 page  
Philips Semiconductors
Satellite and cellular dual-band RF front-end
Product specification
SA1921
Table 1. POWER DOWN CONTROL
Control State
(Hi/Lo, Syn On, Rx On, Tx On, Strong Signal)
x000x Sleep
01000 Low-Band LO Buffer on
01100 Low-Band Receive Normal
01101 Low-Band receive Strong Signal
01110 Low-Band Transmit (Analog only)
01010 N/A
11000 High-Band LO Buffer On
11100 High-Band Receive Normal
11101 High-Band Receive Strong Signal
11010 N/A
NOTE:
1. “0” is low logic state; “1” is high logic state.
LO BUFFER
High Low
Band Band
Off Off
Off On
Off On
Off On
Off On
Off On
On Off
On Off
On Off
On Off
LNA
High Low
Band Band
Off Off
Off Off
Off On
Off Off
Off On
High Bias
Off Off
Off Off
On Off
Off Off
Off Off
MIXER
High Low
Band Band
Off Off
Off Off
Off On
Off On
Off On
Off Off
Off Off
On Off
On Off
Off Off
TX MIXER
DRIVER
High Low
Band Band
Off Off
Off Off
Off Off
Off Off
Off On
Off On
Off Off
Off Off
Off Off
On Off
1999 Mar 02
5
5 Page 
Philips Semiconductors
Satellite and cellular dual-band RF front-end
Product specification
SA1921
1999 Mar 02
Figure 3. SA1921 Dual-Band Test Circuit
11
SR01802
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SA1921.PDF ] | |
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