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MAX19713
10-Bit, 45Msps, Full-Duplex, Analog Front-End
Ultra-Low Power AFE with Integrated Tx DACs, Rx ADCs, and Auxiliary Control Data Converters
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Status
Active: In Production.
Description
The MAX19713 is an ultra-low-power, highly integrated
mixed-signal analog front-end (AFE) ideal for wideband
communication applications operating in full-duplex (FD)
mode. Optimized for high dynamic performance and
ultra-low power, the device integrates a dual 10-bit,
45Msps receive (Rx) ADC; dual 10-bit, 45Msps transmit
(Tx) DAC; three fast-settling 12-bit aux-DAC channels for
ancillary RF front-end control; and a 10-bit, 333ksps
housekeeping aux-ADC. The typical operating power in
FD mode is 91.8mW at a 45MHz clock frequency.
The Rx ADCs feature 54dB SINAD and 72.2dBc SFDR at
5.5MHz input frequency with a 45MHz clock frequency.
The analog I/Q input amplifiers are fully differential and
accept 1.024VP-P full-scale signals. Typical I/Q channel
matching is ±0.03 phase and ±0.02dB gain.
The Tx DACs feature 70.3dBc SFDR at fOUT = 2.2MHz
and fCLK = 45MHz. The analog I/Q full-scale output voltage
range is ±400mV differential. The output DC common-mode voltage is selectable from 0.71V to 1.06V. The
I/Q channel offset is adjustable to optimize radio lineup
sideband/carrier suppression. Typical I/Q channel
matching is ±0.01dB gain and ±0.05° phase.
Two independent 10-bit parallel, high-speed digital
buses used by the Rx ADC and Tx DAC allow full-duplex
operation for frequency-division duplex applications.
The Rx ADC and Tx DAC can be disabled
independently to optimize power management. A 3-wire
serial interface controls power-management modes, the
aux-DAC channels, and the aux-ADC channels.
The MAX19713 operates on a single 2.7V to 3.3V analog
supply and 1.8V to 3.3V digital I/O supply. The
MAX19713 is specified for the extended (-40°C to
+85°C) temperature range and is available in a 56-pin,
thin QFN package. The Selector Guide at the end of the
data sheet lists other pin-compatible versions in this AFE
family. For time-division duplex (TDD) applications, refer
to the MAX19705–MAX19708 AFE family of products.
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Data Sheet
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An evaluation kit is available: MAX19710EVCMODU, MAX19710EVKIT, MAX19711EVCMODU, MAX19711EVKIT, MAX19712EVCMODU, MAX19712EVKIT, MAX19713EVCMODU, MAX19713EVKIT
Key Features
- Dual 10-Bit, 45Msps Rx ADC and Dual 10-Bit, 45Msps Tx DAC
- Ultra-Low Power
- 91.8mW at fCLK = 45MHz, FD Mode
- 79.2mW at fCLK = 45MHz, Slow Rx Mode
- 49.5mW at fCLK = 45MHz, Slow Tx Mode
- Low-Current Standby and Shutdown Modes
- Programmable Tx DAC Common-Mode DC Level and I/Q Offset Trim
- Excellent Dynamic Performance
- SNR = 54.1dB at fIN = 5.5MHz (Rx ADC)
- SFDR = 70.3dBc at fOUT = 2.2MHz (Tx DAC)
- Three 12-Bit, 1µs Aux-DACs
- 10-Bit, 333ksps Aux-ADC with 4:1 Input Mux and Data Averaging
- Excellent Gain/Phase Match
- ±0.03° Phase, ±0.02dB Gain (Rx ADC) at fIN = 5.5MHz
- Multiplexed Parallel Digital I/O
- Serial-Interface Control
- Versatile Power-Control Circuits
- Shutdown, Standby, Idle, Tx/Rx Disable
- Miniature 56-Pin Thin QFN Package (7mm x 7mm x 0.8mm)
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Applications/Uses
- 802.11a/b/g WLAN
- Portable Communication Equipment
- VoIP Terminals
- WiMAX CPEs
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Key Specifications:
| Fast CODECs / Analog Front-End (AFE) |
| Part Number |
Input Chan. |
Conv. Speed
(Msps) |
SNR
(dB) |
Resolution
(bits) |
Output Chan. |
Speed
(Msps) |
SFDR
(dBc) |
THD
(dBc) |
Noise Spectral Density
(dBFS/Hz) |
VSUPPLY
(V) |
Budgetary Price |
| ADC |
ADC |
@ fIN |
DAC |
DAC |
DAC |
@ fOUT |
@ fOUT |
@ fOUT |
See Notes |
| MAX19713 |
2 |
45 |
54.1 @ 5.5MHz |
10 |
2 |
45 |
70.3 @ 2.2MHz |
-68.1 @ 2.2MHz |
-129 @ 2.2MHz |
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$9.88 @1k |
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See All Fast CODECs / Analog Front-End (AFE) (13)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Didn't Find What You Need?
Information Index
Document Ref.: 19-0529
Rev 1;
2006-11-08
This page last modified: 2009-01-12
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