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PDF MAX19713 Data sheet ( Hoja de datos )
| Número de pieza | MAX19713 | |
| Descripción | Analog Front-End | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-0529; Rev 1; 9/06
EVAALVUAAILTAIOBNLEKIT
10-Bit, 45Msps, Full-Duplex
Analog Front-End
General 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 volt-
age range is ±400mV differential. The output DC com-
mon-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 applica-
tions. 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.
Applications
WiMAX CPEs
801.11a/b/g WLAN
Portable Communication
Equipment
VoIP Terminals
Ordering Information
PART*
PIN-PACKAGE
PKG CODE
MAX19713ETN
56 Thin QFN-EP**
T5677-1
MAX19713ETN+
56 Thin QFN-EP**
T5677-1
*All devices are specified over the -40°C to +85°C operating range.
**EP = Exposed paddle. +Denotes lead-free package.
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)
Pin Configuration
TOP VIEW
42 41 40 39 38 37 36 35 34 33 32 31 30 29
ADC1 43
DAC3 44
DAC2 45
DAC1 46
VDD 47
IDN 48
IDP 49
GND 50
VDD 51
QDN 52
QDP 53
REFIN 54
COM 55
REFN 56
MAX19713
EXPOSED PADDLE (GND)
28 DA3
27 DA2
26 DA1
25 DA0
24 OVDD
23 OGND
22 AD9
21 AD8
20 AD7
19 AD6
18 AD5
17 AD4
16 AD3
15 AD2
1 2 3 4 5 6 7 8 9 10 11 12 13 14
THIN QFN
NOTE: THE PIN 1 INDICATOR IS “+” FOR LEAD-FREE DEVICES.
Functional Diagram and Selector Guide appear at end of
data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Free Datasheet http://www.datasheet4u.com/
1 page  
10-Bit, 45Msps, Full-Duplex
Analog Front-End
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3V, OVDD = 1.8V, internal reference (1.024V), CL ≈ 10pF on all digital outputs, fCLK = 45MHz (50% duty cycle), Rx ADC input amplitude
= -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output, CREFP = CREFN =
CCOM = 0.33µF, CL < 5pF on all aux-DAC outputs, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
Tx DAC DYNAMIC PERFORMANCE
DAC Conversion Rate
fCLK
In-Band Noise Density
ND
Third-Order Intermodulation
Distortion
IM3
Glitch Impulse
Spurious-Free Dynamic Range to
Nyquist
SFDR
CONDITIONS
(Note 2)
fOUT = 2.2MHz
fOUT1 = 2MHz, fOUT2 = 2.2MHz
fOUT = 2.2MHz
MIN TYP MAX UNITS
-129
-82
10
61.5 70.3
45 MHz
dBFS/Hz
dBc
pV•s
dBc
Total Harmonic Distortion to
Nyquist
THD
Signal-to-Noise Ratio to Nyquist
SNR
Tx DAC INTERCHANNEL CHARACTERISTICS
fOUT = 2.2MHz
fOUT = 2.2MHz
-68.1
56.1
-60.5
dBc
dB
I-to-Q Output Isolation
fOUTX,Y = 500kHz, fOUTY,X = 620kHz
85 dB
Gain Mismatch Between I and Q
Channels
Measured at DC
Phase Mismatch Between I and Q
Channels
fOUT = 2.2MHz
Differential Output Impedance
Tx DAC ANALOG OUTPUT
Full-Scale Output Voltage
VFS
Bits CM1 = 0, CM0 = 0 (default)
Output Common-Mode Voltage
VCOMD
Bits CM1 = 0, CM0 = 1
Bits CM1 = 1, CM0 = 0
Bits CM1 = 1, CM0 = 1
Rx ADC–Tx DAC INTERCHANNEL CHARACTERISTICS
Receive Transmit Isolation
ADC: fINI = fINQ = 5.5MHz, DAC: fOUTI =
fOUTQ = 2.2MHz
AUXILIARY ADCs (ADC1, ADC2)
Resolution
N
Full-Scale Reference
VREF
AD1 = 0 (default)
AD1 = 1
Analog Input Range
Analog Input Impedance
Input-Leakage Current
Gain Error
Zero-Code Error
Differential Nonlinearity
GE
ZE
DNL
Measured at DC
Measured at unselected input from 0 to VREF
Includes reference error, AD1 = 0
-0.4 ±0.01 +0.4
dB
±0.05
800
Degrees
Ω
1.01
0.88
0.75
0.62
±400
1.06
0.94
0.82
0.71
1.11
1.00
0.90
0.81
mV
V
85 dB
10
2.048
VDD
0 to
VREF
500
±0.1
-5 +5
±2
±0.6
Bits
V
V
kΩ
µA
%FS
mV
LSB
_______________________________________________________________________________________ 5
Free Datasheet http://www.datasheet4u.com/
5 Page 
10-Bit, 45Msps, Full-Duplex
Analog Front-End
Typical Operating Characteristics (continued)
(VDD = 3V, OVDD = 1.8V, internal reference (1.024V), CL ≈ 10pF on all digital outputs, fCLK = 45MHz (50% duty cycle), Rx ADC input
amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output,
CREFP = CREFN = CCOM = 0.33µF, TA = +25°C, unless otherwise noted.)
Rx ADC SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT AMPLITUDE
80
75 fIN = 13.057251MHz
70
65
60
55
50 QA
IA
45
40
35
30
-30
-25 -20 -15 -10 -5
ANALOG INPUT AMPLITUDE (dBFS)
0
Rx ADC SIGNAL-TO-NOISE RATIO
vs. SAMPLING FREQUENCY
57.0
56.5 fIN = 13.024292MHz
56.0
55.5 QA
55.0
54.5
54.0
53.5 IA
53.0
52.5
52.0
5
10 15 20 25 30 35 40 45
SAMPLING FREQUENCY (MHz)
Rx ADC SIGNAL-TO-NOISE AND DISTORTION
RATIO vs. SAMPLING FREQUENCY
57.0
56.5 fIN = 13.024292MHz
56.0
55.5 QA
55.0
54.5
54.0
53.5 IA
53.0
52.5
52.0
5
10 15 20 25 30 35 40 45
SAMPLING FREQUENCY (MHz)
Rx ADC TOTAL HARMONIC DISTORTION
vs. SAMPLING FREQUENCY
85
fIN = 13.024292MHz
80
75 QA
70
65
IA
Rx ADC SPURIOUS-FREE DYNAMIC
RANGE vs. SAMPLING FREQUENCY
90
fIN = 13.024292MHz
85
80 QA
75
70
IA
65
60 60
55
5
10 15 20 25 30 35 40 45
SAMPLING FREQUENCY (MHz)
Rx ADC SIGNAL-TO-NOISE RATIO
vs. CLOCK DUTY CYCLE
65.0
fIN = 13.024292MHz
62.5
60.0
IA
57.5
55.0
52.5
50.0
QA
47.5
45.0
42.5
40.0
40
45 50 55
CLOCK DUTY CYCLE (%)
60
55
5
10 15 20 25 30 35 40 45
SAMPLING FREQUENCY (MHz)
Rx ADC SIGNAL-TO-NOISE AND DISTORTION
RATIO vs. CLOCK DUTY CYCLE
65.0
fIN = 13.024292MHz
62.5
60.0
57.5 IA
55.0
52.5
50.0
QA
47.5
45.0
42.5
40.0
40
45 50 55
CLOCK DUTY CYCLE (%)
60
______________________________________________________________________________________ 11
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11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MAX19713.PDF ] | |
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