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Teilenummer | PCF5078T |
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Beschreibung | Power amplifier controller for GSM and PCN systems | |
Hersteller | NXP Semiconductors | |
Logo | ||
Gesamt 20 Seiten INTEGRATED CIRCUITS
DATA SHEET
PCF5078
Power amplifier controller for GSM
and PCN systems
Product specification
File under Integrated Circuits, IC17
1999 Apr 12
Philips Semiconductors
Power amplifier controller for GSM and
PCN systems
Product specification
PCF5078
handbook, full pagewidth
RFout 0
(dBc)
−10
−20
−30
−40
−50
−60
−70
−80
VVDAC
< 0.9VDD
−28 −18 −10 0
CODESTART
VVC
< 0.9VDD
0 2 4 6 8 10 12 14 16
+543 +553 +561 +571
time (µs)
CODEEND
16 18 20 22 24 26 28 30 32 DAC bits at 560 kHz
Vprebias
VDD
0 2 4 6 8 10 12 14 16
RFin
>45 µs
16 18 20 22 24 26 28 30 32 DAC bits at 560 kHz
>15 µs
time
time
MGS197
1999 Apr 12
Fig.3 Timing diagram.
6
6 Page Philips Semiconductors
Power amplifier controller for GSM and
PCN systems
Product specification
PCF5078
andbook, halfpage
Vhome
VOLTAGE
GENERATION
R3
50 kΩ
7 VHOME
PCF5078
VVHOME
C(1)
R(2)
MGS204
andbook, halfpage
VDD
Vhome
VOLTAGE
GENERATION
R3
50 kΩ
7 VHOME
PCF5078
MGS203
R(2)
VVHOME
C(1)
(1) C = 22 to 82 pF.
(2) R = V-----h---o--m--V--e--V--–-H----OV----MV----HE---O----M----E-- × R3
Fig.10 Suggested method to force externally
VVHOME < Vhome.
(1) C = 22 to 82 pF.
(2) R = -V--V--V--D-H---D-O---M-–----EV----–V----H-V--O--h--M-o--m-E----e- × R3
Fig.11 Suggested method to force externally
VVHOME > Vhome.
handbook, halfpage
VC
1
PCF5078
700 Ω
120 pF
MGS202
Fig.12 Typical output load on pin VC.
1999 Apr 12
12
12 Page | ||
Seiten | Gesamt 20 Seiten | |
PDF Download | [ PCF5078T Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
PCF5078 | Power amplifier controller for GSM and PCN systems | NXP Semiconductors |
PCF5078T | Power amplifier controller for GSM and PCN systems | NXP Semiconductors |
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