max5863 Maxim Integrated Products, Inc., max5863 Datasheet

no-image

max5863

Manufacturer Part Number
max5863
Description
Max5863 Ultra-low-power, High-dynamic Performance, 7.5msps Analog Front End
Manufacturer
Maxim Integrated Products, Inc.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
max5863ETM
Manufacturer:
MAXIM
Quantity:
5
Part Number:
max5863ETM
Manufacturer:
ROHM
Quantity:
1 615
Part Number:
max5863ETM
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX5863 ultra-low-power, highly integrated analog
front end is ideal for portable communication equipment
such as handsets, PDAs, WLAN, and 3G wireless termi-
nals. The MAX5863 integrates dual 8-bit receive ADCs
and dual 10-bit transmit DACs while providing the high-
est dynamic performance at ultra-low power. The ADCs’
analog I-Q input amplifiers are fully differential and
accept 1V
phase matching is ±0.03° and amplitude matching is
±0.03dB. The ADCs feature 48.5dB SINAD and 69dBc
spurious-free dynamic range (SFDR) at f
and f
fully differential with ±400mV full-scale output, and 1.4V
common-mode level. Typical I-Q channel phase match is
±0.15° and gain match is ±0.05dB. The DACs also fea-
ture dual 10-bit resolution with 73dBc SFDR, and 61dB
SNR at f
The ADCs and DACs operate simultaneously or indepen-
dently for frequency-division duplex (FDD) and time-divi-
sion duplex (TDD) modes. A 3-wire serial interface
controls power-down and transceiver modes of opera-
tion. The typical operating power is 22.8mW at f
7.5Msps with the ADCs and DACs operating simultane-
ously in transceiver mode. The MAX5863 features an
internal 1.024V voltage reference that is stable over the
entire operating power-supply range and temperature
range. The MAX5863 operates on a +2.7V to +3.3V ana-
log power supply and a +1.8V to +3.3V digital I/O power
supply for logic compatibility. The quiescent current is
3.5mA in idle mode and 1µA in shutdown mode. The
MAX5863 is specified for the extended (-40°C to +85°C)
temperature range and is available in a 48-pin thin QFN
package.
19-2914; Rev 1; 10/03
*EP = Exposed paddle.
**Contact factory for dice specifications.
Pin Configuration appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX5863ETM
MAX5863E/D
PART
CLK
Narrowband/Wideband CDMA Handsets
and PDAs
Fixed/Mobile Broadband Wireless Modems
3G Wireless Terminals
OUT
= 7.5Msps. The DACs’ analog I-Q outputs are
P-P
= 620kHz and f
full-scale signals. Typical I-Q channel
________________________________________________________________ Maxim Integrated Products
Performance, 7.5Msps Analog Front End
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
General Description
CLK
= 7.5MHz.
Applications
PIN-PACKAGE
48 Thin QFN-EP*
(7mm x 7mm)
Dice**
Ultra-Low-Power, High-Dynamic
IN
= 1.875MHz
CLK
=
o Integrated Dual 8-Bit ADCs and Dual 10-Bit DACs
o Ultra-Low Power
o Excellent Dynamic Performance
o Excellent Gain/Phase Match
o Internal/External Reference Option
o +1.8V to +3.3V Digital Output Level (TTL/CMOS
o Multiplexed Parallel Digital Input/Output for
o Miniature 48-Pin Thin QFN Package (7mm
o Evaluation Kit Available (Order MAX5865EVKIT)
Compatible)
ADCs/DACs
22.8mW at f
20.7mW at f
Low-Current Idle and Shutdown Modes
48.5dB SINAD at f
73dBc SFDR at f
±0.03° Phase, ±0.03dB Gain at f
(ADC)
REFIN
REFN
REFP
COM
QA+
QD+
QD-
QA-
ID+
IA+
ID-
IA-
CLK
CLK
REF AND
BIAS
ADC
ADC
DAC
DAC
= 7.5MHz (Transceiver Mode)
= 5.2MHz (Transceiver Mode)
OUT
Functional Diagram
IN
MAX5863
= 1.875MHz (ADC)
= 620kHz (DAC)
AND SYSTEM
INTERFACE
CONTROL
SERIAL
OUTPUT
INPUT
MUX
ADC
MUX
DAC
IN
= 1.875MHz
Features
DA0–DA7
CLK
DD0–DD9
DIN
SCLK
CS
7mm)
1

Related parts for max5863

max5863 Summary of contents

Page 1

... The MAX5863 features an internal 1.024V voltage reference that is stable over the entire operating power-supply range and temperature range. The MAX5863 operates on a +2.7V to +3.3V ana- log power supply and a +1.8V to +3.3V digital I/O power supply for logic compatibility. The quiescent current is 3.5mA in idle mode and 1µA in shutdown mode. The MAX5863 is specified for the extended (-40° ...

Page 2

Ultra-Low-Power, High-Dynamic Performance, 7.5Msps Analog Front End ABSOLUTE MAXIMUM RATINGS V to GND OGND................................-0.3V to +3. GND to OGND.......................................................-0.3V to +0.3V IA+, IA-, QA+, QA-, ID+, ID-, QD+, QD-, REFP, REFN, REFIN, COM to GND ..............................-0.3V ...

Page 3

Performance, 7.5Msps Analog Front End ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V DAC output amplitude = 0dBFS, differential ADC input, differential DAC output, C otherwise noted. Typical values are ...

Page 4

Ultra-Low-Power, High-Dynamic Performance, 7.5Msps Analog Front End ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V DAC output amplitude = 0dBFS, differential ADC input, differential DAC output, C otherwise noted. Typical values are at ...

Page 5

Performance, 7.5Msps Analog Front End ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V DAC output amplitude = 0dBFS, differential ADC input, differential DAC output, C otherwise noted. Typical values are ...

Page 6

Ultra-Low-Power, High-Dynamic Performance, 7.5Msps Analog Front End ELECTRICAL CHARACTERISTICS (continued 3V 1.8V, internal reference (1.024V DAC output amplitude = 0dBFS, differential ADC input, differential DAC output, C otherwise noted. Typical values are at ...

Page 7

... A guaranteed by design and characterization. Note 2: The minimum clock frequency for the MAX5863 is 2MHz. Note 3: SNR, SINAD, SFDR, HD3, and THD are based on a differential analog input voltage of -0.5dBFS referenced to the amplitude of the digital outputs. SINAD and THD are calculated using HD2 through HD6. ...

Page 8

Ultra-Low-Power, High-Dynamic Performance, 7.5Msps Analog Front End ( 3V 1.8V, internal reference (1.024V input amplitude = -0.5dBFS, DAC output amplitude = 0dBFS, differential ADC input, differential DAC output ...

Page 9

Performance, 7.5Msps Analog Front End ( 3V 1.8V, internal reference (1.024V input amplitude = -0.5dBFS, DAC output amplitude = 0dBFS, differential ADC input, differential DAC output 0.33µF, Xcvr ...

Page 10

Ultra-Low-Power, High-Dynamic Performance, 7.5Msps Analog Front End ( 3V 1.8V, internal reference (1.024V input amplitude = -0.5dBFS, DAC output amplitude = 0dBFS, differential ADC input, differential DAC output ...

Page 11

Performance, 7.5Msps Analog Front End ( 3V 1.8V, internal reference (1.024V input amplitude = -0.5dBFS, DAC output amplitude = 0dBFS, differential ADC input, differential DAC output 0.33µF, Xcvr ...

Page 12

Ultra-Low-Power, High-Dynamic Performance, 7.5Msps Analog Front End PIN NAME 1 REFP Upper Reference Voltage. Bypass with a 0.33µF capacitor to GND as close to REFP as possible. Analog Supply Voltage. Bypass 0.1µF capacitor. 3 ...

Page 13

... DAC can be shared to reduce the digital I single 10-bit parallel multiplexed bus. In FDD mode, the full-scale signals. P-P MAX5863 digital I/O can be configured for an 18-bit, parallel multiplexed bus to match the dual 8-bit ADC and dual 10-bit DAC. The MAX5863 features an internal precision 1.024V bandgap reference output and is stable over the entire power-supply and temperature ranges ...

Page 14

... MAX5863 and degrading its dynamic performance. Buffers on the digital outputs isolate them from heavy capacitive loads. Adding 100Ω resistors in series with the digital outputs close to the MAX5863 helps improve ADC performance. Refer to the MAX5865 EV kit schematic for an example of the digital outputs driving a digital buffer through 100Ω ...

Page 15

... This simplifies the analog interface between RF quadrature upconverters and the MAX5863. RF upconverters require a 1.3V to 1.5V com- mon-mode bias. The internal DC common-mode bias eliminates discrete level-setting resistors and code-gen- erated level-shifting while preserving the full dynamic range of each transmit DAC ...

Page 16

... N-1 N-2 N-1 The 3-wire serial interface controls the MAX5863 opera- tion modes. Upon power-up, the MAX5863 must be programmed to operate in the desired mode. Use the 3-wire serial interface to program the device for the shutdown, idle, standby, Rx, Tx, or Xcvr mode. An 8-bit data register sets the operation modes as shown in Table 3 ...

Page 17

... Shutdown mode offers the most dramatic power sav- ings by shutting down all the analog sections of the MAX5863 and placing the ADCs’ digital outputs in tri- state mode. When the ADCs’ outputs transition from tri- state to on, the last converted word is placed on the digital outputs. The DACs’ ...

Page 18

... SINAD performance and DAC settling to 10 LSB error times are measured after the 8-bit WAKE ENABLE serial command is latched into the MAX5863 by CS transition high. t for Xcvr mode is dominated by ENABLE the DAC wake-up time. The recovery time is 10µs to switch between Xcvr, Tx modes. The recovery time is 40µ ...

Page 19

... V former can be used step-up transformer can be selected to reduce the drive requirements. In general, the MAX5863 provides better SFDR and THD with fully differential input signals than single-ended signals, especially for high-input frequencies. In differential mode, even-order harmonics are lower as both inputs ...

Page 20

... ADC and 10-bit DAC) to the digital baseband processor. Select Xcvr mode through the 3-wire serial interface and use the conver- sion clock to latch data. In FDD mode, the MAX5863 INA- uses 21mW power at f power of the ADC and DAC operating simultaneously. ...

Page 21

... R10 R11 600Ω 600Ω ADC MAX2391 ADC QUADRATURE OUTPUT DEMODULATOR MUX ADC DAC MAX2395 DAC QUADRATURE INPUT TRANSMITTER MUX DAC MAX5863 MAX5863 R ISO 22Ω INA 5pF COM R ISO 22Ω INA 5pF CLK CLK 10 BIT SERIAL BUS 21 ...

Page 22

... Also, the DAC’s full dynamic range is pre- served because the internally generated common- mode level eliminates code-generated level shifting or attenuation due to resistor level shifting. The MAX5863 ADC has 1V full-scale range and accepts input com- P-P mon-mode levels (± ...

Page 23

Performance, 7.5Msps Analog Front End Ideally, the midscale transition occurs at 0.5 LSB above midscale. The offset error is the amount of deviation between the measured transition point and the ideal transition point. Offset error is the difference between the ...

Page 24

... IA+ 3 IA- 4 GND 5 CLK 6 GND QA GND 12  2  n   1  through 2 TRANSISTOR COUNT: 16,765 PROCESS: CMOS Pin Configuration SCLK 34 DIN DD9 31 DD8 MAX5863 30 DD7 29 DD6 28 DD5 27 DD4 DD3 26 DD2 25 QFN Chip Information ...

Page 25

Performance, 7.5Msps 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.) D D/2 ______________________________________________________________________________________ Ultra-Low-Power, High-Dynamic k E/2 (NE- DETAIL ...

Page 26

Ultra-Low-Power, High-Dynamic Performance, 7.5Msps 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.) COMMON DIMENSIONS Maxim cannot assume responsibility for use of any ...

Related keywords