14-Bit, 92.16 MSPS, 4-/6-Channel
Wideband IF to Baseband Receiver
AD6654
FEATURES
APPLICATIONS
SNR = 90 dB in 1.25 MHz bandwidth to Nyquist
SNR = 87 dB in 1.25 MHz bandwidth to 200 MHz
Integrated 14-bit, 92.16 MSPS ADC
Multicarrier, multimode digital receivers
GSM, EDGE, PHS, UMTS, WCDMA, CDMA2000,
TD-SCDMA, WiMAX
IF sampling frequencies to 200 MHz
Micro and pico cell systems, software radios
Wireless local loop
Smart antenna systems
In-building wireless telephony
Broadband data applications
Instrumentation and test equipment
Internal 2.4 V reference, 2.2 V p-p analog input range
Internal differential track-and-hold analog input
Processes 4/6 wideband carriers simultaneously
Fractional clock multiplier to 200 MHz
Programmable decimating FIR filters, interpolating
half-band filters and programmable AGC loops
with 96 dB range
Three 16-bit configurable parallel output ports
User-configurable built-in self-test (BIST) capability
8-/16-bit microport and SPORT/SPI® serial port control
FUNCTIONAL BLOCK DIAGRAM
4-CHANNEL AND 6-CHANNEL DIGITAL DOWN CONVERTER
14-BIT ADC FRONT END
FIR1
HB1
FIR2
HB2
MRCF
DRCF
CIC5
CRCF
LHB
ENC+
ENC–
NCO
NCO
NCO
NCO
NCO
NCO
M = 1–32
M = 1–16
L = 1, 2
M = BYP, 2
M = BYP, 2
M = 1–16
INTERNAL
TIMING
FIR1
HB1
M = BYP, 2
FIR2
HB2
M = BYP, 2
MRCF
DRCF
M = 1–16
CIC5
M = 1–32
CRCF
M = 1–16
LHB
L = 1, 2
14
AIN+
AIN–
SHA
OVR
ADC
2.4V
INPUT
PA
PB
PC
MATRIX
FIR1
HB1
M = BYP, 2
FIR2
HB2
M = BYP, 2
MRCF
DRCF
M = 1–16
CIC5
M = 1–32
CRCF
M = 1–16
LHB
L = 1, 2
V
REF
V
REF
AGC
PRN
GEN
FIR1
HB1
M = BYP, 2
FIR2
HB2
M = BYP, 2
MRCF
DRCF
M = 1–16
CIC5
M = 1–32
CRCF
M = 1–16
LHB
L = 1, 2
(ADC OVERRANGE)
3
EXP
BITS
EXP
(VGA LEVEL CONTROL)
FIR1
HB1
M = BYP, 2
FIR2
HB2
M = BYP, 2
MRCF
DRCF
M = 1–16
CIC5
M = 1–32
CRCF
M = 1–16
LHB
L = 1, 2
PEAK/
RMS
MSMT
FIR1
HB1
M = BYP, 2
FIR2
HB2
M = BYP, 2
MRCF
DRCF
M = 1–16
CIC5
M = 1–32
CRCF
M = 1–16
LHB
L = 1, 2
(AVAILABLE IN
6-CHANNEL MODEL ONLY)
AVDD, DRVDD,
VDDCORE, VDDIO, GND
SYNC
0, 1, 2, 3
CLOCK
MULTIPLIER
8-BIT/16-BIT MICROPORT
INTERFACE
SPORT/
SPI INTERFACE
M = DECIMATION
L = INTERPOLATION
Figure 1.
Rev. 0
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infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
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