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PDF CXA3328EN Data sheet ( Hoja de datos )
| Número de pieza | CXA3328EN | |
| Descripción | Analog Signal Processor RX-IF IC | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXA3328TN/EN
Analog Signal Processor RX-IF IC for W-CDMA Cellular Phones
Description
The CXA3328TN/EN is an analog signal processor
RX-IF IC for W-CDMA cellular phones. This IC contains
a gain control amplifier and quadrature demodulator.
Features
• Wide gain control range
• Linear gain slope
• Wide band (100 to 600MHz)
• Small package
16-pin TSSOP (CXA3328TN)
16-pin VSON (CXA3328EN)
• Low voltage operation (2.7 to 3.3V)
Absolute Maximum Ratings
• Supply voltage
VCC
• Operating temperature Topr
• Storage temperature Tstg
–0.3 to 5.5
–55 to +125
–65 to +150
V
°C
°C
Operating Conditions
• Supply voltage
• Operating temperature
VCC
Ta
2.7 to 3.3 V
–25 to +85 °C
Structure
Bipolar silicon monolithic IC
16 pin TSSOP (Plastic)
16 pin VSON (Plastic)
Block Diagram
16 15 14 13 12 11 10
9
AGC
CONT
SWITCH
1/2 1/4
12345678
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E00738D24-PS
1 page  
CXA3328TN/EN
GCA Block
(VCC = 2.85V, Ta = 27°C)
Item Symbol
Conditions
Measure- Measure-
ment circuit ment point
Min.
Typ.
Max. Unit
Input conversion
noise figure
NF
Gain = +65dB
3
A, B
C, D
— — 10 dB
Input conversion
3rd intercept
point
IIP3_1
Gain = +65dB
FRXIF = 382MHz
FLO = 760MHz
LOCAL SW = “L”
IIP3_2
Gain = –10dB
FRXIF = 382MHz
FLO = 760MHz
LOCAL SW = “L”
2
A, B
C, D
–58 —
— dBm
2
A, B
C, D
–10 —
— dBm
Gain flatness
FRXIF = 382 ± 2.5MHz
GF LOCAL SW = “L”
2
FLO = 2 × (FRXIF + 2) MHz
A, B
C, D
–0.25 —
0.25 dB
Minimum gain
GMIN
Vcont = 0.3 [V],
30mVp-p differential output
FRXIF = 382MHz
FLO = 760MHz
LOCAL SW = “L”
2
A, B
C, D
— –25.5 –20.5 dB
Maximum gain
GMAX
Vcont = 2.3 [V],
100mVp-p differential output
FRXIF = 382MHz
FLO = 760MHz
LOCAL SW = “L”
2
A, B
C, D
67.5 72.5 —
dB
Gain temperature
error
GERR
Ta = –25 to +85°C
2
A, B
C, D
–4 —
4 dB
–5–
5 Page 
CXA3328TN/EN
Description of Operation
1. Outline of Operation
This IC performs the signal processing between the analog transmit baseband processing block and the
analog transmit RF processing block of the cellular phone. The figure below shows the general circuit block
diagram for the portable cellular phone using this IC. The input of this IC is connected to the analog RF
processing block; the output is connected to the baseband signal processing block.
CXA3328TN/EN
LPF
RF receive/transmit
processing
CXG1110EN
Digital processing mobile
station modem
CODEC
CXA3309ER
LPF
2. IC Internal Signal Flow
An IF signal and a local signal are input to this IC as shown in the figure below. The IF signal is gain-
controlled to the necessary level by the gain control amplifier and is input to the quadrature demodulator
block. The local signal is 1/2 or 1/4 frequency-divided. Also, that signal becomes the quadrature I/Q local
signal via the FF phase shifter and quadrature-demodulated with the IF signal to become the baseband
signal.
OUT (I)
IF
OUT (Q)
Local
1/2
Phase
Shifter,
Switch
1/4
– 11 –
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet CXA3328EN.PDF ] | |
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