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AD9782

Features: 12-bit resolution, 200 MSPS input data rate Selectable 2*/4*/8* interpolation filters Selectable fDAC/2, fDAC/4, fDAC/8 modulation modes Single or dual-channel signal processing Selectable image rejection Hilbert transform Flexible calibration engine Direct IF transmission features Seria...

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SeekIC No. : 004273443 Detail

AD9782: Features: 12-bit resolution, 200 MSPS input data rate Selectable 2*/4*/8* interpolation filters Selectable fDAC/2, fDAC/4, fDAC/8 modulation modes Single or dual-channel signal processing Selectable...

AD9782 Data Sheet

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Part Number:
AD9782
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

12-bit resolution, 200 MSPS input data rate
Selectable 2*/4*/8* interpolation filters
Selectable fDAC/2, fDAC/4, fDAC/8 modulation modes
Single or dual-channel signal processing
Selectable image rejection Hilbert transform
Flexible calibration engine
Direct IF transmission features
Serial control interface
Versatile clock and data interface
SFDR 90 dBc @10 MHz
WCDMA ACLR = 80 dBc @ 40 MHz IF
DNL = ±0.75 LSB
INL = ±1.5 LSB
3.3 V compatible digital Interface
On-chip 1.2 V reference
80-lead thermally enhanced TQFP package


Application

Digital quadrature modulation architectures
Multicarrier WCDMA, GSM, TDMA, DCS,
PCS, CDMA Systems


Pinout

Connection Diagram


Specifications

Parameter Min Typ Max Unit
RESOLUTION
DC Accuracy1
Integral Nonlinearity
Differential Nonlinearity 		  12

1.5
0.75 		  Bits

LSB
LSB
ANALOG OUTPUT
Offset Error
Gain Error (Without Internal Reference)
Gain Error (With Internal Reference)
Full-Scale Output Current2
Output Compliance Range
Output Resistance
Output Capacitance 		10
1.0

TBD
3 		20
+1.0 		% of FSR
% of FSR
% of FSR
mA
V
k
pF
REFERENCE OUTPUT
Reference Voltage
Reference Output Current3		 1.14 1.20
1 		1.26 V
A
REFERENCE INPUT
Input Compliance Range
Reference Input Resistance (Ext Reference Mode)
Small Signal Bandwith 		0.1 10
0.5 		1.25 V
M
MHz
TEMPERATURE COEFFICIENTS
Unipolar Offset Drift
Gain Drift (Without Internal Reference)
Gain Drift (With Internal Reference)
Reference Voltage Drift 		      ppm of FSR/
ppm of FSR/
ppm of FSR/
ppm /
POWER SUPPLY
Voltage Range
Analog Supply Current (IAVDD1)
Analog Supply Current (IAVDD2)
IAVDD1 in SLEEP Mode
Voltage Range
Analog Supply Current (IACVD)
Analog Supply Current (IADVD)
CLKVDD
Voltage Range
Clock Supply Current (ICLKVDD)
Voltage Range
Digital Supply Current (IDVDD)
Voltage Range
Digital Supply Current (IDRVDD)
Nominal Power Dissipation4 		3.1




2.35



2.35


2.35


2.35
3.3




2.5



2.5


2.5


2.5/3

1.25 		3.5




2.6



2.6


2.6


3.5

 V
mA
mA
mA

V
mA
mA

V
mA

V
mA

V
mA
W
OPERATING RANGE 40   +85



Description

The AD9782 is a 12-bit, high speed, CMOS DAC with 2*/4*/8* interpolation and signal processing features tuned for communications applications. It offers state of the art distortion and noise performance. The AD9782 was developed to meet the  demanding performance requirements of multicarrier and third generation base stations. The selectable interpolation filters
simplify interfacing to a variety of input data rates while also taking advantage of oversampling performance gains. The modulation modes allow convenient bandwidth placement and
selectable sideband suppression.

The flexible clock interface accepts a variety of input types such as 1 V p-p sine wave, CMOS, and LVPECL in single ended or differential mode. Internal dividers generate the required data
rate interface clocks.

The AD9782 provides a differential current output, supporting single-ended or differential applications; it provides a nominal full-scale current from 10 mA to 20 mA. The AD9782 is manufactured on an advanced low cost 0.25 m CMOS process.




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