參數(shù)資料
型號： SLWS132
廠商： Texas Instruments, Inc.
英文描述： QUAD RECEIVER CHIP
中文描述： 四接收器芯片
文件頁數(shù)： 6/46頁
文件大?。?/td> 413K
代理商： SLWS132
GRAYCHIP, INC.
- 1 -
APRIL 27, 1999
GC4014 QUAD RECEIVER CHIP
DATA SHEET REV 0.6
This document contains information which may be changed at any time without notice
GC4014 DATASHEET
2.0
BLOCK DIAGRAM
A block diagram illustrating the major functions of the chip is shown in Figure 1.
Figure 1. GC4014 Block Diagram
CLOCK DOUBLING
AND
DISTRIBUTION CIRCUIT
CK
CONTROL INTERFACE
WR
RD
A[0:4]
C[0:7]
SYNC COUNTER
AND
DIAGNOSTIC TEST
GENERATOR
SI
SO
AND FILTER
CE
S
C
OUTPUT
FORMAT
AND GAIN
BANDWIDTH
FILTER SELECT
DECIMATE BY 8
FORMAT
SELECT
G
A
OUT
(BIT SERIAL)
B
OUT
(BIT SERIAL)
S
C
G
OUTPUT
FORMAT
AND GAIN
TWO STAGE
BY 4OR 8
FILTER
GAIN
GAIN
T
F
P
O
T
F
P
O
DECIMATE
BY 8 TO 16K
FILTER
DECIMATE
BY 8 TO 16K
FILTER
A
IN
B
IN
S
C
OUTPUT
FORMAT
AND GAIN
G
C
OUT
(BIT SERIAL)
D
OUT
(BIT SERIAL)
S
C
G
OUTPUT
FORMAT
AND GAIN
GAIN
GAIN
T
F
P
O
T
F
P
O
DECIMATE
BY 8 TO 16K
FILTER
DECIMATE
BY 8 TO 16K
FILTER
C
IN
D
IN
(14 BITS)
(14 BITS)
(14 BITS)
(14 BITS)
CR pins for the LSB’s of inputs A
OUTPUT SUM AND MULTIPLEX
B
F
R
ACKNOWLEDGE
DIAGNOSTICS
(16 bit input mode uses the D
IN
IN
, B
IN
, and C
IN
)
TWO STAGE
BY 4OR 8
FILTER
TWO STAGE
BY 4OR 8
FILTER
TWO STAGE
BY 4OR 8
FILTER
COEFFICIENT RAMS
1.0
KEY FEATURES
Input rates up to 64 MSPS
Four real input down-convert channels or
Two complex input downconvert channels
Independent tuning frequencies
Independent phase/gain controls
4 by 4 14 bit Input Crossbar switch or
3 by 4 16 bit Input Crossbar switch
Decimation factors of
16 to 32,768 in the real output mode
32 to 65,536 in the complex output mode
Zero padding for lower decimation factors
Outputs can be either:
bit serial,
nibble serial (link port)
or memory mapped
Output summing for beamforming
8 to 16 bit output samples
0.02 Hz tuning resolution
0.14 dB gain resolution
Less than 0.05 dB peak to peak passband
ripple
Greater than 100 dB far image rejection
Greater than 95 dB spur free dynamic range
User programmable 63 tap output filter
Nyquist filtering for QPSK or QAM symbol
data
Meets GSM, AMPS and DAMPS Cellular
specifications
Microprocessor interface for control, output,
and diagnostics
Built in diagnostics
Microprocessor interface will accept either
3.3 or 5 volt input levels
250 mW per channel at 50 MHz, 3.3 volts
100 pin thin QFP package
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