MAX19713ETN+ Maxim Integrated Products, MAX19713ETN+ Datasheet

IC ANLG FRONT END 45MSPS 56-TQFN

MAX19713ETN+

Manufacturer Part Number
MAX19713ETN+
Description
IC ANLG FRONT END 45MSPS 56-TQFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX19713ETN+

Number Of Bits
10
Number Of Channels
2
Power (watts)
91.8mW
Voltage - Supply, Analog
3V
Voltage - Supply, Digital
3V
Package / Case
56-TQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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 1.024V
matching is ±0.03 phase and ±0.02dB gain.
The Tx DACs feature 70.3dBc SFDR at f
and f
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.
* All devices are specified over the -40°C to +85°C operating range.
** EP = Exposed paddle.
19-0529; Rev 1; 9/06
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.
MAX19713ETN
MAX19713ETN+
WiMAX CPEs
801.11a/b/g WLAN
VoIP Terminals
CLK
PART*
= 45MHz. The analog I/Q full-scale output volt-
P-P
________________________________________________________________ Maxim Integrated Products
full-scale signals. Typical I/Q channel
PIN-PACKAGE
56 Thin QFN-EP**
56 Thin QFN-EP**
Ordering Information
+ Denotes lead-free package.
General Description
Portable Communication
Equipment
Applications
OUT
PKG CODE
T5677-1
T5677-1
= 2.2MHz
10-Bit, 45Msps, Full-Duplex
♦ Dual 10-Bit, 45Msps Rx ADC and Dual 10-Bit,
♦ Ultra-Low Power
♦ Programmable Tx DAC Common-Mode DC Level
♦ Excellent Dynamic Performance
♦ Three 12-Bit, 1µs Aux-DACs
♦ 10-Bit, 333ksps Aux-ADC with 4:1 Input Mux and
♦ Excellent Gain/Phase Match
♦ Multiplexed Parallel Digital I/O
♦ Serial-Interface Control
♦ Versatile Power-Control Circuits
♦ Miniature 56-Pin Thin QFN Package
Functional Diagram and Selector Guide appear at end of
data sheet.
45Msps Tx DAC
and I/Q Offset Trim
Data Averaging
(7mm x 7mm x 0.8mm)
NOTE: THE PIN 1 INDICATOR IS “+” FOR LEAD-FREE DEVICES.
91.8mW at f
79.2mW at f
49.5mW at f
Low-Current Standby and Shutdown Modes
SNR = 54.1dB at f
SFDR = 70.3dBc at f
±0.03° Phase, ±0.02dB Gain (Rx ADC) at
f
Shutdown, Standby, Idle, Tx/Rx Disable
IN
TOP VIEW
= 5.5MHz
REFIN
ADC1
DAC3
DAC2
DAC1
COM
REFN
GND
QDN
QDP
V
IDN
V
IDP
DD
DD
43
44
45
46
47
48
49
50
51
52
53
54
55
56
Analog Front-End
42 41 40 39 38 37 36 35 34 33 32 31 30 29
1
CLK
CLK
CLK
2
3
= 45MHz, FD Mode
= 45MHz, Slow Rx Mode
= 45MHz, Slow Tx Mode
4
5
EXPOSED PADDLE (GND)
IN
6
THIN QFN
MAX19713
= 5.5MHz (Rx ADC)
OUT
7
Pin Configuration
8
= 2.2MHz (Tx DAC)
9 10 11 12 13 14
Features
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DA3
DA2
DA1
DA0
OV
OGND
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
DD
1

Related parts for MAX19713ETN+

MAX19713ETN+ Summary of contents

Page 1

... VoIP Terminals Ordering Information PART* PIN-PACKAGE MAX19713ETN 56 Thin QFN-EP** MAX19713ETN+ 56 Thin QFN-EP** * All devices are specified over the -40°C to +85°C operating range Exposed paddle. + Denotes lead-free package. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’ ...

Page 2

Full-Duplex Analog Front-End ABSOLUTE MAXIMUM RATINGS GND OGND ..............................-0.3V to +3.6V GND to OGND.......................................................-0.3V to +0.3V IAP, IAN, QAP, QAN, IDP, IDN, QDP, QDN, DAC1, DAC2, DAC3 to GND .....................-0. ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output ...

Page 4

Full-Duplex Analog Front-End ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx ...

Page 5

ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output ...

Page 6

Full-Duplex Analog Front-End ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx ...

Page 7

ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output ...

Page 8

Full-Duplex Analog Front-End ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx ...

Page 9

ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output ...

Page 10

Full-Duplex Analog Front-End ( 1.8V, internal reference (1.024V amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output, ...

Page 11

OV = 1.8V, internal reference (1.024V amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output ...

Page 12

Full-Duplex Analog Front-End ( 1.8V, internal reference (1.024V amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output, ...

Page 13

OV = 1.8V, internal reference (1.024V amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output ...

Page 14

Full-Duplex Analog Front-End ( 1.8V, internal reference (1.024V amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, CM1 = 0, CM0 = 0, differential Rx ADC input, differential Tx DAC output, ...

Page 15

PIN NAME Positive Reference Voltage Input Terminal. Bypass with a 0.33µF capacitor to GND as close to REFP 1 REFP as possible 11, 39, Analog Supply Voltage. Bypass 41, 47 0.1µF capacitor. 3 ...

Page 16

Full-Duplex Analog Front-End The MAX19713 integrates three 12-bit auxiliary DACs (aux-DACs) and a 10-bit, 333ksps auxiliary ADC (aux- ADC) with 4:1 input multiplexer. The aux-DAC channels feature 1µs settling time for fast AGC, VGA, and AFC level setting. ...

Page 17

Table 1. Rx ADC Output Codes vs. Input Voltage DIFFERENTIAL INPUT DIFFERENTIAL INPUT (LSB) VOLTAGE V x 512/512 511 (+Full Scale - 1 LSB) REF V x 511/512 510 (+Full Scale - 2 LSB) REF V x 1/512 REF V ...

Page 18

Full-Duplex Analog Front-End CLK CLK t t DOQ DOI D0–D9 D0Q D1I D1Q Figure 3. Rx ADC System Timing Diagram Table 2. Tx DAC Output Voltage vs. Input Codes (Internal Reference ...

Page 19

Tx DAC CH-ID Tx DAC CH-QD FULL SCALE = 1.26V V = 1.06V COMD ZERO SCALE = 0.86V 0V Figure 4. Tx DAC Common-Mode DC Level at IDN, IDP or QDN, QDP Differential Outputs CLK t DSQ D0– ...

Page 20

Full-Duplex Analog Front-End Figure 5 shows the relationship among the clock, input data, and analog outputs. Channel ID data is latched on the falling edge of the clock signal, and channel QD data is latched on the rising ...

Page 21

Table 3. MAX19713 Mode Control D11 D10 REGISTER NAME (MSB) 15 E11 = 0 E10 = 0 ENABLE-16 Reserved Reserved Aux-DAC1 1D11 1D10 Aux-DAC2 2D11 2D10 Aux-DAC3 3D11 3D10 IOFFSET — — QOFFSET — — COMSEL — — AD11 = ...

Page 22

Full-Duplex Analog Front-End Table 5. MAX19713 Tx, Rx, and FD Control Using SPI Commands ADDRESS DATA BITS 0000 (16-Bit Mode) and 1000 ...

Page 23

Table 6. MAX19713 Default (Power-On) Register Settings D11 D10 D9 REGISTER 16 NAME 15 14 (MSB) 0 ENABLE- Aux Aux-DAC1 Aux-DAC2 Aux-DAC3 IOFFSET — — ...

Page 24

Full-Duplex Analog Front-End Table 9. Offset Control Bits for ID and QD Channels (IOFFSET or QOFFSET Mode) BITS IO5–IO0 WHEN IN IOFFSET MODE, BITS QO5–QO0 WHEN IN QOFFSET MODE IO5/QO5 IO4/QO4 • ...

Page 25

CS/WAKE t CSS SCLK t DS MSB DIN Figure 6. Serial-Interface Timing Diagram CS/WAKE SCLK DIN AD0–AD9 ID/QD Figure 7. Mode-Recovery Timing Diagram MAX19713 enters the power mode determined by the WAKEUP-SEL register, however, all other settings (Tx DAC offset, ...

Page 26

Full-Duplex Analog Front-End System Clock Input (CLK) Both the Rx ADC and Tx DAC share the CLK input. The CLK input accepts a CMOS-compatible signal level set by OV from 1. Since the interstage con- ...

Page 27

Table 12. Auxiliary ADC Convert AD0 SELECTION 0 Aux-ADC Idle (Default) 1 Aux-ADC Start-Convert Table 13. Auxiliary ADC Reference AD1 SELECTION 0 Internal 2.048V Reference (Default) 1 Internal V Table 14. Auxiliary ADC Input Source AD3 AD2 Aux-ADC INPUT SOURCE ...

Page 28

Full-Duplex Analog Front-End The fastest method to perform sequential conversions with the aux-ADC is by sending consecutive commands setting AD10 = 1, AD0 = 1. With this sequence the CS/WAKE falling edge shifts data from the previous con- ...

Page 29

DIN can be written independent of DOUT state. A 16-bit instruction at DIN updates the device configuration. To prevent modifying internal registers while reading data from DOUT, hold DIN at a high state (only applies if sequential aux-ADC conversions are ...

Page 30

Full-Duplex Analog Front-End Rx ADC inputs only requires half the signal swing com- pared to single-ended mode. Figure 10 shows an RF transformer converting the MAX19713 Tx DAC differen- tial analog outputs to single-ended. Using Op-Amp Coupling Drive ...

Page 31

R1 600Ω R2 600Ω R3 600Ω Figure 12. Rx ADC DC-Coupled Differential Drive capacitor in parallel with a 2.2µF capacitor. Bypass REFP, REFN, and COM each to GND with a 0.33µF ceramic capacitor. Bypass REFIN to GND with a 0.1µF ...

Page 32

Full-Duplex Analog Front-End IAP IAN QAP QAN FDD ZIF TRANSCEIVER IDP IDN QDP AGC QDN DAC1 TCXO DAC2 DAC3 ADC1 BATTERY VOLTAGE MONITOR TEMPERATURE MEASUREMENT ADC2 Figure 13. Typical FDD Radio Application Circuit 32 ______________________________________________________________________________________ V = 2.7V ...

Page 33

Differential Nonlinearity (DNL) Differential nonlinearity is the difference between an actual step width and the ideal value of 1 LSB. A DNL error specification of less than 1 LSB guarantees no missing codes (ADC) and a monotonic transfer function (ADC ...

Page 34

Full-Duplex Analog Front-End Effective Number of Bits (ENOB) ENOB specifies the dynamic performance of an ADC at a specific input frequency and sampling rate. An ideal ADC’s error consists of quantization noise only. ENOB for a full-scale sinusoidal ...

Page 35

Full-Duplex V = 2.7V TO 3.3V DD IAP 10-BIT ADC IAN QAP 10-BIT ADC QAN IDP 10-BIT DAC IDN QDP 10-BIT DAC QDN PROGRAMMABLE OFFSET/CM 12-BIT DAC1 AUX-DAC 12-BIT DAC2 AUX-DAC 12-BIT DAC3 AUX-DAC ADC1 ADC2 AUX-ADC V ...

Page 36

Full-Duplex Analog Front-End (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) E E/2 D ______________________________________________________________________________________ DETAIL A e (ND- ...

Page 37

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 37 © 2006 Maxim Integrated Products ...

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