AD6654_15 Datasheet, PDF (1/88 Pages) Analog Devices – 14-Bit, 92.16 MSPS, 4-/6-Channel Wideband IF to Baseband Receiver

FEATURES
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
IF sampling frequencies to 200 MHz
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
14-Bit, 92.16 MSPS, 4-/6-Channel
Wideband IF to Baseband Receiver
AD6654
APPLICATIONS
Multicarrier, multimode digital receivers
GSM, EDGE, PHS, UMTS, WCDMA, CDMA2000,
TD-SCDMA, WiMAX
Micro and pico cell systems, software radios
Wireless local loop
Smart antenna systems
In-building wireless telephony
Broadband data applications
Instrumentation and test equipment
FUNCTIONAL BLOCK DIAGRAM
14-BIT ADC FRONT END
4-CHANNEL AND 6-CHANNEL DIGITAL DOWN CONVERTER
ENC+
ENC–
AIN+
AIN–
V_REF
SHA
INTERNAL
TIMING
ADC
14
INPUT
MATRIX
2.4V
V_REF
NCO
NCO
NCO
CIC5
M = 1–32
CIC5
M = 1–32
CIC5
M = 1–32
FIR1
HB1
M = BYP, 2
FIR1
HB1
M = BYP, 2
FIR1
HB1
M = BYP, 2
FIR2
HB2
M = BYP, 2
FIR2
HB2
M = BYP, 2
FIR2
HB2
M = BYP, 2
MRCF
DRCF
M = 1–16
MRCF
DRCF
M = 1–16
MRCF
DRCF
M = 1–16
CRCF
M = 1–16
CRCF
M = 1–16
CRCF
M = 1–16
OVR
(ADC OVERRANGE)
3
EXP
(VGA LEVEL CONTROL)
PRN
GEN
EXP
BITS
PEAK/
RMS
MSMT
NCO
NCO
CIC5
M = 1–32
CIC5
M = 1–32
FIR1
HB1
M = BYP, 2
FIR1
HB1
M = BYP, 2
FIR2
HB2
M = BYP, 2
FIR2
HB2
M = BYP, 2
MRCF
DRCF
M = 1–16
MRCF
DRCF
M = 1–16
CRCF
M = 1–16
CRCF
M = 1–16
(AVAILABLE IN
6-CHANNEL MODEL ONLY)
NCO
CIC5
M = 1–32
FIR1
HB1
M = BYP, 2
FIR2
HB2
M = BYP, 2
MRCF
DRCF
M = 1–16
CRCF
M = 1–16
M = DECIMATION
L = INTERPOLATION
AVDD, DRVDD,
VDDCORE, VDDIO, GND
SYNC
0, 1, 2, 3
CLOCK
MULTIPLIER
8-BIT/16-BIT MICROPORT
INTERFACE
LHB
L = 1, 2
LHB
L = 1, 2
LHB
L = 1, 2
LHB
L = 1, 2
LHB
L = 1, 2
PA
AGC PB
PC
LHB
L = 1, 2
SPORT/
SPI INTERFACE
Figure 1.
Rev. 0
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