MAX2140ETH+T Maxim Integrated Products, MAX2140ETH+T Datasheet

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MAX2140ETH+T

Manufacturer Part Number
MAX2140ETH+T
Description
RF Modules & Development Tools Complete SDARs Recei plete SDARs Receiver
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX2140ETH+T

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX2140 complete receiver is designed for satellite
digital audio radio services (SDARS). The device
includes a fully monolithic VCO and only needs a SAW at
the IF and a crystal to generate the reference frequency.
To form a complete SDARS radio, the MAX2140
requires only a low-noise amplifier (LNA), which can be
controlled by a baseband controller. The small number
of external components needed makes the MAX2140-
based platform the lowest cost and the smallest solu-
tion for SDARS.
The receiver includes a self-contained RF AGC loop
and baseband-controlled IF AGC loop, effectively pro-
viding a total dynamic range of over 92dB.
Channel selectivity is ensured by the SAW filter and by
on-chip monolithic lowpass filters.
The fractional-N PLL allows a very small frequency
step, making possible the implementation of an AFC
loop. Additionally, the reference is provided by an
external XTAL and on-chip oscillator. A reference buffer
output is also provided.
A 2-wire interface (I
circuit for a wide variety of conditions, providing fea-
tures such as:
The MAX2140 minimizes the requirement on the base-
band controller. No compensation or calibration proce-
dures are required. The device is available in a 7mm
7mm 44-pin thin QFN package.
19-3123; Rev 3; 10/05
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.
•Programmable gains
•Lowpass filters tuning
•Individual functional block shutdown
Satellite Digital Audio Radio Services (SDARS)
2.4GHz ISM Radios
________________________________________________________________ Maxim Integrated Products
2
C-bus compatible) programs the
General Description
Applications
Complete SDARS Receiver
♦ Integrated Receiver, Requires Only One SAW
♦ Self-Contained RF AGC Loop
♦ Differential I/Q Interface
♦ Complete Integrated Frequency Generation
♦ Bias Supply for External LNAs
♦ Overcurrent Protection
♦ Low-Power Standby Mode
♦ Very Small 44-Pin Thin QFN Package
*EP = Exposed paddle.
+Denotes lead-free package.
MAX2140ETH
MAX2140ETH+
RFAGC_C
AGCPWM
VCC_FE0
VCC_FE1
VCC_FE2
Filter
IFOUT+
Block Diagram/Pin Configuration
IFOUT-
RFIN+
RFIN-
IFIN+
IFIN-
PART
10
11
1
2
3
4
5
6
7
8
9
12
44
43
13
XM TUNER
42
14
QUAD
AGC
/4/8
RF
41
15
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
MAX2140
Ordering Information
LPF
LPF
40
16
ACTUAL SIZE
7mm x 7mm
39
17
HPF
HPF
38
18
Σ Δ - MOD
37
19
36
20
1/N
PFD
PIN-PACKAGE
44 Thin QFN-EP*
44 Thin QFN-EP*
1/R
35
21
Features
CHP
34
22
33
32
31
30
29
28
27
26
25
24
23
VTUNE
VCCREG
VCC_VCO
VCC_FE3
CPOUT
LOCK
VCC_A
VCC_D
REFOUT
XTAL
VCC_XTAL
1

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MAX2140ETH+T Summary of contents

Page 1

... The device is available in a 7mm 7mm 44-pin thin QFN package. Satellite Digital Audio Radio Services (SDARS) 2.4GHz ISM Radios ________________________________________________________________ Maxim Integrated Products 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. Complete SDARS Receiver ♦ ...

Page 2

Complete SDARS Receiver ABSOLUTE MAXIMUM RATINGS V to GND..................................................... -0.3V to +4.3V CC_XX VINANT to GND.................................................... -0.3V to +5.6V AGCPWM to GND ................................................ -0.3V to +3.0V Digital Input Current ........................................................ ±10mA Maximum VSWR Without Damage ........................................ 4:1 Maximum VSWR Without ...

Page 3

AC ELECTRICAL CHARACTERISTICS (MAX2140 EV kit, current drawn at VOUTANT 2345MHz 2076MHz -40°C to +85°C. Typical values are otherwise noted.) (Note 2) Interstage (IF) 259MHz SAW filter specification: insertion loss ...

Page 4

Complete SDARS Receiver AC ELECTRICAL CHARACTERISTICS (continued) (MAX2140 EV kit, current drawn at VOUTANT 2345MHz 2076MHz -40°C to +85°C. Typical values are otherwise noted.) (Note 2) Interstage (IF) 259MHz SAW ...

Page 5

AC ELECTRICAL CHARACTERISTICS (continued) (MAX2140 EV kit, current drawn at VOUTANT 2345MHz 2076MHz -40°C to +85°C. Typical values are otherwise noted.) (Note 2) Interstage (IF) 259MHz SAW filter specification: insertion ...

Page 6

Complete SDARS Receiver AC ELECTRICAL CHARACTERISTICS (continued) (MAX2140 EV kit, current drawn at VOUTANT 2345MHz 2076MHz -40°C to +85°C. Typical values are otherwise noted.) (Note 2) Interstage (IF) 259MHz SAW ...

Page 7

A INPUT RETURN LOSS vs. FREQUENCY 0 -5 -10 -15 MAXIMUM RF AGC -20 -25 MINIMUM RF AGC -30 2.2 2.3 2.4 FREQUENCY (GHz) RF AGC SETTLING TIME WITH 20dB STEP 0dBm RF AGC ...

Page 8

Complete SDARS Receiver (T = +25°C, unless otherwise noted.) A LPF GROUP DELAY vs. FREQUENCY REF 6.250000MHz 80ns 113.8ns 100ns/div 1MHz 16MHz REFOUT WAVEFORM (REF = 1, RFD = 0) 200mV/div 10ns/div 8 _______________________________________________________________________________________ Typical Operating Characteristics (continued) VCO PHASE ...

Page 9

PIN NAME VCC_FE0, VCC_FE1, VCC_FE2, VCC_BE1 VCC_BE2, VCC_BE3, 12–15, 23, VINANT, VCC_XTAL, Power Supplies. Bypass to ground with capacitors as close to the pins as possible. 26, 27, 30, VCC_D, VCC_A, 31, 40 VCC_FE3, VCC_VCO, VCC_BE4 Differential ...

Page 10

Complete SDARS Receiver Detailed Description The front end of the MAX2140, which downconverts the RF signal to IF, is defined from the differential RF inputs (pins RFIN+ and RFIN-) to the output (pins IFOUT+ and IFOUT-) to the SAW filter. ...

Page 11

Applications Information Serial Interface and Control Registers MAX2140 Programming Bits: The MAX2140 conforms to the Philips I 400kbps (fast mode), and operates as a slave. The MAX2140 addresses can be selected from three values, which are determined by the logic ...

Page 12

Complete SDARS Receiver F19 to F16 is the upper-part binary-written main dividing ratio, fractional part multiplied by 2 1,048,576. BYTES PLLfrac1 and PLLfrac0: F15 the lower-part binary-written main divid- ing ratio, fractional part multiplied by 2 BYTE ...

Page 13

... 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. 13 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products ...

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