View MAX2308EVKIT_293805.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

19-2109; Rev 0; 7/01
MAX2306/MAX2308/MAX2309 Evaluation Kits
General Description
The MAX2306/MAX2308/MAX2309 evaluation kits (EV kits) simplify testing of the MAX2306/MAX2308/ MAX2309 IF receivers. These kits allow evaluation of the devices' variable-gain amplifier (VGA), I/Q demodulator, dual-band voltage-controlled oscillators (VCOs), synthesizer, 3-wire programming interface, and powermanagement features. The EV kits provide 50 SMA connectors for all signal inputs and outputs. A varactor-based tank circuit is provided for the on-chip VCO and can be tuned by a potentiometer or an external voltage or phase-locked with the on-chip phase-locked loop (PLL). o Dual Oscillators (MAX2306) o On-Board PLL Synthesizer o 3-Wire Interface o Single-Ended or Differential Baseband Outputs o +2.7V to +5.5V Single-Supply Operation o SMA Connectors on All Signal Ports o PC Control Software (available at www.maxim-ic.com)
Features
Evaluate: MAX2306/MAX2308/MAX2309
Ordering Information
PART MAX2306EVKIT MAX2308EVKIT MAX2309EVKIT TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C IC PACKAGE 28 QSOP-EP* 28 QSOP-EP* 28 QSOP-EP*
*Exposed pad
Component List
DESIGNATION C1, C33, C34 C2 C3 QTY 3 1 1 DESCRIPTION 47pF 10%, 25V min ceramic capacitors (0402) 2pF 0.1pF, 25V min ceramic capacitor (0402) (MAX2306) 33pF 10%, 25V min ceramic capacitor (0402) (MAX2306) 33pF 10%, 25V min ceramic capacitor (0402) (MAX2306/MAX2309) 2pF 0.1pF, 25V min ceramic capacitor (0402) (MAX2306/MAX2308) 33pF 10%, 25V min ceramic capacitor (0402) 33pF 10%, 25V min ceramic capacitor (0402) (MAX2306/MAX2308) 330pF 10%, 25V min ceramic capacitors (0402) DESIGNATION C9, C10, C11, C13, C14, C15, C21, C22, C28, C30, C35, C37, C38, C42, C46, C57, C59 QTY DESCRIPTION
15
0.01F 10%, 25V min ceramic capacitors (0402)
C4
1
C16
1
3.0pF 0.1pF, 25V min ceramic capacitor (0402) (MAX2306/MAX2308) 0.01F 1%, 25V min ceramic capacitor (0402) (MAX2306/MAX2308) 10pF 10%, 25V min ceramic capacitors (0402) 10F 10%, 16V min tantalum capacitors AVX TAJC106K016 0.068F 10%, 25V min ceramic capacitor (0402) Open 1000pF 10% capacitor (0402) (MAX2309)
C5
1
C18
1
C6
1
C19, C20
2
C7 C8, C12, C23, C24, C25, C31
1
C27, C56, C58
3
6
C29 C36 C43
1 0 1
________________________________________________________________ Maxim Integrated Products
1
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.
MAX2306/MAX2308/MAX2309 Evaluation Kits Evaluate: MAX2306/MAX2308/MAX2309
Component List (continued)
DESIGNATION C44, C47-C53 C54, C55 C60 C61 D2 D3 QTY 8 2 1 1 1 1 DESCRIPTION 0.1F 10%, 25V min ceramic capacitors (0402) 0.1F 10%, 25V min ceramic capacitors (0805) 0 resistor (0402) (MAX2309) 2pF 0.1pF, 25V min ceramic capacitor (0402) (MAX2309) Varactor diode (MAX2306) Alpha SMV1763-079 Varactor diode Alpha SMV1763-079 Varactor diode (MAX2306/MAX2308) Alpha SMV1763-079 Varactor diode (MAX2306/MAX2309) Alpha SMV1763-079 33nH inductor (MAX2306) Coilcraft 0603CS-33NXGBC 33nH inductor (MAX2306/MAX2308) Coilcraft 0603CS-33NXGBC 120nH inductor (MAX2306/MAX2308) Coilcraft 0603CS-33NXGBC 220nH inductor Coilcraft 0603CS-R22TKBC 33nH inductor (MAX2309) Coilcraft 0603CS-33NXGBC 270nH inductor Toko LL1608-PSR275 Open 0 resistors (0402) 10k 5% resistor (0402) (MAX2306) 10k 5% resistor (0402) (MAX2306/MAX2309) 10k 5% resistor (0402) None INTF2300 Interface Board None 1 1 1 DESIGNATION R5 R6 R8, R14, R16, R18 R7 R9 R10 R11, R19, R31, R32, R33, R34, R40, R81 R12, R22 R13, R24 R15, R17 R20, R21, R25, R35 R23 R26 R41 R44 J18 JU3, JU9, JU10, JU11 T1 U1 U2, U3 None 1 4 1 1 1 8 2 2 2 0 1 1 1 1 1 4 1 1 2 1 QTY DESCRIPTION 10k 5% resistor (0402) (MAX2306/MAX2308) 100 5% resistor (0402) (MAX2306/MAX2309) 100 5% resistors (0402) 49.9 1% resistor (0402) 681 1% resistor (0402) 4.7k 5% resistor (0402) 5k 5% resistors (0402) 47k 5% resistors (0402) 10k Bourns variable resistors, Digi-Key 3296W-104-ND 100 5% resistors (0402) (MAX2309) Open 2.4k 5% resistor (0402) 47k 5% resistor (0402) 0 resistor (0402) (MAX2306) 0 resistor (0402) (MAX2309) 20-pin header Two-pin headers Balun transformer, Toko DB458-1011 MAX2306EGI, MAX2308EGI, or MAX2309EGI IC MAX4108ESA MAX2306/MAX2308/MAX2309 circuit board MAX2306/MAX2308/MAX2309 data sheet 3-wire programming and interface board 20-pin ribbon cable
D4
1
D5
1
L1
1
L2
1
L3
1
L4 L5 L6 Q1 R1, R38, R39 R2 R3 R4
1 1 1 1 3 1 1 1
2
_______________________________________________________________________________________
MAX2306/MAX2308/MAX2309 Evaluation Kits
Component Suppliers
SUPPLIER Alpha Industries AVX Coilcraft Murata Toko PHONE 617-935-5150 803-946-0690 847-639-6400 770-436-1300 708-297-0070 FAX 617-933-2359 803-626-3123 847-639-1469 770-436-3030 708-699-1194
Quick Start
The MAX2306/MAX2308/MAX2309 EV kits are fully assembled and factory tested. Follow the instructions in the Connections and Setup section.
Recommended Test Equipment
The test equipment recommended to verify MAX2306/ MAX2308/MAX2309 operation is listed in Table 1. This list is intended as a guide only; substitutions may be possible.
Connections and Setup
The following sections provide instructions for getting the EV kit running in CDMA mode. CDMA Mode Perform the following steps to evaluate the MAX2306/ MAX2308/MAX2309 in CDMA mode: 1) Verify that shunts JU3, JU10, and JU11 are in place.
Table 1. Recommended Equipment
EQUIPMENT DESCRIPTION HP 8648A or equivalent. Capable of delivering -70dBm to -10dBm of output power in the 10MHz to 500MHz frequency range. One generator is required to test the receive signal path and the other is for the reference frequency. For viewing the demodulator outputs. Capable of providing at least 100mA at +2.7V to +5.5V. For external control of VGA (optional). 486DX33 or better, with Windows95(R) or later version of Windows(R) operating system and a parallel port. Provided with EV kit.
RF Signal Generators (2)
2) Connect the INTF2300 interface cable as shown in Figure 11. (Pin 1 of the interface cable corresponds to the red wire; pin 1 is designated in silkscreen on each of the PC boards.) 3) Connect a +2.75V power supply to the VCC and GND terminals. Set the other two supplies to +5V and -5V and then connect to the appropriate +5V, -5V, and GND terminals on the EV board. 4) Install and run Maxim's CDMA control software (available at www.maxim-ic.com). Under the Technical Support heading, click on SOFTWARE. Select the correct software to download and install. 5) With the MAX2306, MAX2308, or MAX2309 screen active, set the control pins. Set SHDN to "H". On the MAX2306, set the MODE to "H". On the MAX2309, set STBY, BUF_EN, and DIVSEL to "H". Turn on the power supplies. Under Preset Modes select CDMA mode. Under Program Dividers set M1 and M2 to 306. Set R1 and R2 to 16 and then click Send Data for M1, M2, R1, and R2. Under Control Register, click on Send Data. 6) Connect a signal generator to the REF port, configured for a sine wave with a 19.2MHz frequency and a -10dBm amplitude. (The REF port is 50 terminated.) 7) Connect a signal generator with 183.72MHz at -66dBm and apply it to the CDMA differential port. 8) Set VGC to 2.5VDC by rotating potentiometer R13. Optionally, an external VGC voltage may be used by removing jumper JU3 and applying a DC voltage to JU3 at the pin labeled VGC. 9) Configure an oscilloscope to measure a highimpedance, 1Vp-p, 100kHz waveform. Connect it to the I or Q output. Voltage gain can be calculated by: V OUTp-p Gain = 20log 2 2V IN VIN (RMS) = 500 x 10
Evaluate: MAX2306/MAX2308/MAX2309
Oscilloscope Power Supply (3) Additional Voltage Source Personal Computer INTF2300 Interface Board
PIN (dBm) - 30 10
Gain = approximately 60dB Note: The balun loss is not taken into account. This loss is typically less than 0.5dB. There may also be some loss through the MAX4108 op amp.
Windows95 and Windows are registered trademarks of Microsoft Corp. _______________________________________________________________________________________ 3
MAX2306/MAX2308/MAX2309 Evaluation Kits Evaluate: MAX2306/MAX2308/MAX2309
Adjustments and Control
VGC Adjust
The MAX2306/MAX2308/MAX2309 EV kits are configured with a 10k trim pot for setting and adjusting the VGA gain. An external supply can be used by removing the 2-pin shunt (JU3) and by directly connecting the supply to JU3 at pin labeled VGC. The VGC voltage must be clean to minimize undesired amplitude modulation.
REF Inputs
The REF port is AC-coupled and terminated for use with a 50 signal source.
I/Q Outputs
The I/Q outputs are self-biased baseband outputs. The differential I/Q outputs are converted to single-ended outputs with MAX4108 op amps.
Interface Control
The interface port is designed to use a 20-pin ribbon cable. Ten pins are signal lines, and the other ten pins are digital grounds. Pin 1 of the interface cable is red. Pin 1 is also designated in silkscreen on each of the PC boards.
PC Board Layout/ Construction
The MAX2306/MAX2308/MAX2309 EV kits can serve as board layout guides. Keep PC board trace lengths as short as possible to minimize parasitics. Keep decoupling capacitors close to the device, with a low-inductance through connection to the ground plane.
Detailed Description
The following sections cover the EV kits' circuit blocks in detail. (Refer to the MAX2306/MAX2308/MAX2309 data sheet for additional information.)
INTF2300
Interface Board
The INTF2300 interface board is used to control the 3wire interface of a device under test from the parallel port of a PC. This board level translates 5V logic from the PC to VCC of the device under test. The INTF2300 also provides buffering and EMI filtering. The recommended operating supply voltage range is +2.7V to +3.6V. For operation of the MAX2306/MAX2309 above +3.6V, jumper JU1 may be removed and an external supply voltage of +3.6V may be applied between VCC (pin 2) and GND (pin 1) (Figure 11).
CDMA Inputs
The on-board balun converts the CDMA DIFF input to a differential signal for the MAX2306/MAX2308/MAX2309. The 50 source impedance is transformed to 500 by the combination of L4, R9, C19, C20, and the 4:1 impedance ratio of the input balun.
FM Inputs
The EV kit is configured for single-ended (50) operation at the FM connector. The matching network transforms 50 to 850.
4
_______________________________________________________________________________________
JU9 VCCA C1 47pF C14 C15 C13 0.01F 0.01F 0.01F 24 23 22 BYP 25 BYP BYP FM+ C16 3.0pF C19 10pF CDMA+ 28 TANKL+ R9 681 CDMA1 TANKLC6 33pF 2 TANKH+ U1 VGC 18 C21 0.01F L2 33nH R12 47k JU3 C20 10pF 19 TOKO 4458D8-1011 VCC L4 220nH C2 2pF L1 33nH 20 T1 J5 CDMA DIFF 21 FM J4 FMC30 0.01F 26 CP_OUT 27 GND C46 0.01F C18 0.01F L3 120nH VCCA VCC R35 OPEN
R24 10k C36 OPEN R23 2.4k C29 R1 0 0.068F R2 10k C3 33pF D2 R3 10k D5 R4 10k D3 R5 10k D4 3 TANKH4 MODE VCC DATA EN REF CLK SHDN QOUT+ 13 14 CLK C35 0.01F 16 15 R41 0 VCCD C10 0.01F 7 R7 49.9 SHDN 9 IOUT+ RXI+ C9 0.01F 10 C11 0.01F IOUTLOCK 11 LOCK QOUT12 C22 0.01F 8 J15 IOUT+ 5V CC 6 GND 17 VCCA DATA EN C5 C7 2pF 33pF C4 33pF
Figure 1. MAX2306EV Kit Schematic
R13 10k
R25 OPEN
R10 4.7k
C31 330pF
MAX2306
MODE/DIVSEL
J3 REF
J13 QOUT+ RXQ+
J12 IOUTRXI-
J14 QOUTRXQ-
MAX2306/MAX2308/MAX2309 Evaluation Kits
Evaluate: MAX2306/MAX2308/MAX2309
_______________________________________________________________________________________
5
Evaluate: MAX2306/MAX2308/MAX2309
Figure 2. MAX2308EV Kit Schematic
JU9 R35 OPEN C14 C15 C13 0.01F 0.01F 0.01F 24 23 22 BYP 25 BYP BYP FM+ C16 3.0pF C19 10pF CDMA+ R9 681 U1 CDMAC20 10pF 19 TOKO 4458D8-1011 VCC L4 220nH 20 J5 CDMA DIFF 21 FM J4 FMC30 0.01F 26 CP_OUT 27 GND 2 TANKH+ D3 C5 2pF L2 33nH 3 TANKH4 N.C. VGC 1 N.C. N.C. VCC VCC GND EN REF CLK SHDN QOUT+ 13 14 CLK C35 0.01F DATA 16 15 DATA EN 17 VCCA 28 5 6 J3 7 R7 49.9 SHDN 9 IOUT+ RXI+ C9 0.01F 10 C11 0.01F IOUTLOCK 11 LOCK QOUT12 C22 0.01F 8 J15 C10 0.01F C21 0.01F 18 C7 33pF R12 47k JU3 C46 0.01F C18 0.01F L3 120nH C1 47pF VCCA VCCA R24 10k R23 2.4k R1 0 C29 0.068F R4 10k C6 33pF R5 10k D4
MAX2306/MAX2308/MAX2309 Evaluation Kits
6
MAX2308
R13 10k VCCD J13 QOUT+ RXQ+ J12 J14 QOUTRXQRXI-
VCC
C36 OPEN
R25 OPEN
R10 4.7k
C31 330pF
REF
_______________________________________________________________________________________
IOUT+
IOUT-
JU9 VCC R35 OPEN C14 C13 0.01F 0.01F 24 23 21 N.C. STBY C15 0.01F 26 CP_OUT C19 10pF CDMA+ R9 681 U1 2 TANKHC6 33pF BUFEN J2 R44 0 28 DIVSEL VCC VCC GND DATA EN REF CLK SHDN QOUT+ 13 14 CLK C35 0.01F 16 15 DATA EN 17 VCCA 5 6 J3 7 R7 49.9 SHDN 9 IOUT+ RXI+ C9 0.01F 10 C11 0.01F IOUTLOCK 11 LOCK QOUT12 C22 0.01F 8 J15 C10 0.01F LOOUT 4 LOOUT C21 0.01F C60 0 VGC 18 BUFEN 3 R12 47k JU3 CDMAC20 10pF 19 TOKO 4458D8-1011 VCC L4 220nH 20 J5 CDMA DIFF 27 GND 1 TANKH+ D5 R4 10k D3 C61 2pF L5 33nH 22 STBY BYP 25 BYP BYP C30 0.01F C46 0.01F C1 47pF
VCCA
VCCA
R24 10k R23 2.4k R1 0 C29 0.068F
C36 OPEN
Figure 3. MAX2309EV Kit Schematic
R3 10k C4 33pF
R25 OPEN
R10 4.7k
MAX2309
C31 330pF
R13 10k
MODE/DIVSEL VCCD
REF
J13 QOUT+ RXQ+
IOUT+
J12
J14 QOUTRXQ-
IOUTRXI-
MAX2306/MAX2308/MAX2309 Evaluation Kits
Evaluate: MAX2306/MAX2308/MAX2309
_______________________________________________________________________________________
7
MAX2306/MAX2308/MAX2309 Evaluation Kits Evaluate: MAX2306/MAX2308/MAX2309
R11 5k
+5V
R31 5k RXI+
C51 0.1F 8 IN7 OUT 6 1 IN+ 4 5
C52 0.1F
2
R38 0
C54 0.1F
J11
R32 5k RXIR81 5k C50 0.1F
3
U3 MAX4108
C53 0.1F
-5V I/Q DEMODULATOR RECEIVERS R19 5k
+5V
R33 5k RXQ-
C47 0.1F 8 IN7 OUT 6 1 IN+ 4 5
C48 0.1F
2
R39 0
C55 0.1F
J16
R34 5k RXQ+ R40 5k C49 0.1F
3
U2 MAX4108
C44 0.1F
-5V
Figure 4. MAX2306/MAX2308/MAX2309 EV Kit Schematic (I/Q Section) 8 _______________________________________________________________________________________
R15* STBY R17* BUFEN VCC L6 270nH 12 J18-F 11 C42 0.01F R14 100 C56 10F C23 330pF 13 J18-G 14 R16 100 C58 10F -5V 5 J18-C 6 1 J18-A 2 R22 47k R20 OPEN 4 J18-B 3 3 1 2 VCC ICCA JU10 VCCA C37 0.01F C33 0.01F C38 0.01F C34 0.01F ICCD JU11 LOCK VCCD Q1 OPEN C24 330pF R18 100 CLK C25 330pF C27 10F C28 0.1F VCC C59 0.1F EN 7 J18-D 8 VCC D1 OPEN C12 330pF R8 100 SHDN C57 0.1F DATA C8 330pF 9 J18-E 10 MODE/DIVSEL 15 J18-H 16 R6* +5V 17 J18-I 18 20 J18-J 19
J1
+5V
J7
GND
J8
-5V
VCC
J9
VCC
R21 OPEN
J10
VCC
Figure 5. MAX2306/MAX2308/MAX2309 EV Kit Schematics (Supplies and Interface Sections) (continued)
VCC
MAX2306/MAX2308/MAX2309 Evaluation Kits
Evaluate: MAX2306/MAX2308/MAX2309
_______________________________________________________________________________________
*SEE COMPONENT LIST
9
MAX2306/MAX2308/MAX2309 Evaluation Kits Evaluate: MAX2306/MAX2308/MAX2309
1.0"
1.0"
Figure 6. MAX2306/MAX2308/MAX2309 EV Kit PC Board Layout--Component Side (Layer 1)
Figure 7. MAX2306/MAX2308/MAX2309 EV Kit PC Board Layout--Ground Plane (Layer 2)
1.0"
Figure 8. MAX2306/MAX2308/MAX2309 EV Kit PC Board Layout--Inner Layer (Layer 3)
10
______________________________________________________________________________________
MAX2306/MAX2308/MAX2309 Evaluation Kits Evaluate: MAX2306/MAX2308/MAX2309
1.0"
1.0"
Figure 9. MAX2306/MAX2308/MAX2309 EV Kit PC Board Layout--Solder Side (Layer 4)
Figure 10. MAX2306/MAX2308/MAX2309 EV Kit Component Placement Guide--Component Side
1.0"
Figure 11. MAX2306/MAX2308/MAX2309 EV Kit Component Placement Guide--Solder Side
______________________________________________________________________________________
11
MAX2306/MAX2308/MAX2309 Evaluation Kits Evaluate: MAX2306/MAX2308/MAX2309
GND JU1 1 DB25M
VCC 2 3 1 1
TO PC PARALLEL PORT 6 20
10 INTF2300
10 DUT
MAX2306 MAX2308 MAX2309
VCCD 6 20
1 1
Figure 12. INTF2300 Interface Board
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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

▲Up To Search▲

Price & Availability of MAX2308EVKIT

	To Download MAX2308EVKIT Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .