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MAX19707
10-Bit, 45Msps, Ultra-Low-Power Analog Front-End
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Status
Active: In Production.
Description
The MAX19707 is an ultra-low-power, mixed-signal analog front-end (AFE) designed for power-sensitive communication equipment. Optimized for high dynamic
performance at 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 Tx-Rx FAST mode is 84.6mW at a 45MHz clock frequency.
The Rx ADCs feature 54.2dB SNR and 71.2dBc SFDR at fIN = 5.5MHz and fCLK = 45MHz. 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 ±0.01dB gain.
The Tx DACs feature 73.2dBc SFDR at fOUT = 2.2MHz and fCLK = 45MHz. The analog I/Q full-scale output voltage is ±400mV differential. The Tx DAC common-mode DC level is programmable from 0.71V to 1.05V. The I/Q
channel offset is programmable to optimize radio lineup sideband/carrier suppresion. The typical I/Q channel matching is ±0.01dB gain and ±0.07° phase.
The Rx ADC and Tx DAC share a single, 10-bit parallel, high-speed digital bus allowing half-duplex operation for time-division duplex (TDD) applications. A 3-wire serial interface controls power-management modes, the aux-DAC channels, and the aux-ADC channels.
The MAX19707 operates on a single 2.7V to 3.3V analog supply and 1.8V to 3.3V digital I/O supply. The MAX19707 is specified for the extended (-40°C to
+85°C) temperature range and is available in a 48-pin, thin QFN package. The Selector Guide at the end of the data sheet lists other pin-compatible versions in this AFE family.
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Data Sheet
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An evaluation kit is available: MAX19705EVKIT, MAX19706EVKIT, MAX19707EVKIT, MAX19708EVKIT
Key Features
- Dual, 10-Bit, 45Msps Rx ADC and Dual, 10-Bit, 45Msps Tx DAC
- Ultra-Low Power
- 84.6mW at fCLK = 45MHz, Fast Mode
- 77.1mW at fCLK = 45MHz, Slow Mode
- Low-Current Standby and Shutdown Modes
- Programmable Tx DAC Common-Mode DC Level and I/Q Offset Trim
- Excellent Dynamic Performance
- SNR = 54.2dB at fIN = 5.5MHz (Rx ADC)
- SFDR = 73.2dBc 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, ±0.01dB 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 48-Pin Thin QFN Package (7mm × 7mm × 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 |
| MAX19707 |
2 |
45 |
54.2 @ 5.5MHz |
10 |
2 |
45 |
73.2 @ 2.2MHz |
-71 @ 2.2MHz |
-130.6 @ 2.2MHz |
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$9.38 @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
Functional Diagram
Application Notes
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX19707ETM
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Active |
TQFN;48 pin;50.4 mm²
Outline Drawing:21-0144 (PDF)
Land Pattern: 90-0130 (PDF)
Use pkgcode/variation: T4877-4*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX19707ETM+
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Active |
TQFN;48 pin;50.4 mm²
Outline Drawing:21-0144 (PDF)
Land Pattern: 90-0130 (PDF)
Use pkgcode/variation: T4877+4*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX19707ETM+T
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Active |
TQFN;48 pin;50.4 mm²
Outline Drawing:21-0144 (PDF)
Land Pattern: 90-0130 (PDF)
Use pkgcode/variation: T4877+4*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX19707ETM-T
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Active |
QFN;48 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX19707EVCMOD2
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Active |
KIT;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX19707EVCMODU
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Active |
KIT;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Similar Products by Function
| MAX19708 |
10-bit, 11Msps, Ultra-Low-Power Analog Front-End |
| MAX19700 |
7.5Msps, Ultra-Low-Power Analog Front-End |
| MAX19705 |
10-bit, 7.5Msps, Ultra-Low-Power Analog Front-End |
| MAX19706 |
10-Bit, 22Msps, Ultra-Low-Power Analog Front-End |
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Similar Products by Application
Evaluation Kits
Products with Similar Part Numbers
Didn't Find What You Need?
Information Index
Document Ref.: 19-3826
Rev 1;
2007-06-20
This page last modified: 2009-07-31
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