HSP50415EVAL1 Intersil, HSP50415EVAL1 Datasheet

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HSP50415EVAL1

Manufacturer Part Number
HSP50415EVAL1
Description
EVALUATION BOARD HSP50415VI
Manufacturer
Intersil
Type
Modulator, Demodulatorr
Datasheets

Specifications of HSP50415EVAL1

For Use With/related Products
HSP50415
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Wideband Programmable Modulator
(WPM)
The HSP50415 Wideband Programmable Modulator (WPM)
is a quadrature amplitude modulator/upconverter designed
for wideband digital modulation. The WPM combines
shaping and interpolation filters, a complex modulator, timing
and carrier NCOs and dual DACs into a single package.
The HSP50415 supports vector modulation, accepting up to
16-bit In phase (I) and Quadrature (Q) samples to generate
virtually any quadrature AM or PM modulation format. A
constellation mapper and 24 Symbol span interpolation
shaping filter is provided for the input baseband signals. Gain
adjustment is provided after the shaping FIR filter. A timing error
generator in the input section allows the on-chip timing NCO to
track the input timing.
The WPM includes a Numerically Controlled Oscillator
(NCO) driven interpolation filter, which allows the input and
output sample rate to have a non-integer or variable
relationship. This re-sampling feature simplifies use of
sample rates that do not have harmonic or integer frequency
relationships to the input data rate and decouples the carrier
from the DATACLK.
A complex quadrature modulator modulates the baseband
data on a programmable carrier center frequency. The WPM
offers digital output spurious Free Dynamic Range (SFDR)
that exceeds 70dB at the maximum output sample rate of
100MSPS, for input sample rates as high as 25MSPS.
X/SIN(X) rolloff compensation filtering is provided. Real
14-bit digital output data is available prior to the 12-bit DACs
providing 20mA full scale output current.
Ordering Information
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
HSP50415VI
HSP50415VIZ (Note)
HSP50415EVAL1
PART NUMBER
®
HSP50415VI
HSP50415VIZ
Evaluation Board
1
PART MARKING
Data Sheet
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
TEMP RANGE (°C)
-40 to +85
-40 to +85
Features
• Output Sample Rates. . . . . . . . . . . . . . . . . . to 100MSPS
• Input Data Rates . . . . . . . . . . . . . . . . Up to 25MSPS (I/Q)
• 32-Bit Programmable Carrier NCO
• X/SIN(X) Rolloff Compensation
• Programmable I and Q Shaping FIR Filters:
• Fixed or NCO Controlled Interpolation:
• Digital Signal Processing Capable of >70dB SFDR
• Dual 12-bit D/A Processing Capable of >50dB SFDR
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Wide-Band Digital Modulation
• Base Station Modulators
• HSP50415EVAL1 Evaluation Board Available
- Up to 24 Symbol Span
- Interpolation Range . . . . . . . . . . . . . . . . . . . 4 to >128k
- Digital PLL to Lock to Input Symbol Clock
All other trademarks mentioned are the property of their respective owners.
April 23, 2007
100 Ld MQFP
100 Ld MQFP (Pb-free)
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
PACKAGE
Copyright Intersil Americas Inc. 2007. All Rights Reserved
Q100.14x20
Q100.14x20
HSP50415
PKG. DWG #
FN4559.6

Related parts for HSP50415EVAL1

HSP50415EVAL1 Summary of contents

Page 1

... Digital Signal Processing Capable of >70dB SFDR • Dual 12-bit D/A Processing Capable of >50dB SFDR • Pb-Free Plus Anneal Available (RoHS Compliant) Applications • Wide-Band Digital Modulation • Base Station Modulators • HSP50415EVAL1 Evaluation Board Available TEMP RANGE (°C) PACKAGE -40 to +85 100 Ld MQFP -40 to +85 100 Ld MQFP (Pb-free) CAUTION: These devices are sensitive to electrostatic discharge ...

Page 2

Pinout CDATA0 CDATA1 CDATA2 VDD CDATA3 CDATA4 GND CDATA5 CDATA6 CDATA7 RD WR GND CE ADDR0 ADDR1 ADDR2 REFCLK 2XSYMCLK INTREQ NC VDD RESET CLK GND DVDD DGND PLLRC PGND PVDD Block Diagram W/R μP INTERFACE CONTROL DATA DATA INTERFACE/ ...

Page 3

Functional Block Diagram μP RESET INTERFACE ADDR<2:0> CDATA<7:0> INTREQ x2 INTERPOLATION DIN<15:0> CONST. I MAP ISTRB FIR DATACLK BYPASS DATA TXEN INTERFACE/ FEMPT FIFO FOVRFL FFULL Q FIR BYPASS BYPASS 2XSYMCLK X 2 PHASE ...

Page 4

Pin Descriptions NAME TYPE VDD - Digital power. GND - Digital ground. DVDD - DAC digital power. DGND - DAC digital ground. AVDD - DAC analog power. AGND - DAC analog ground. PVDD - PLL analog power. PGND - PLL ...

Page 5

Pin Descriptions (Continued) NAME TYPE ICOMP1, I Compensation Pin for use in Reducing Bandwidth/Noise. Each pin should be individually decoupled to AVDD with QCOMP1 a 0.1μF capacitor. To minimize crosstalk, the part was designed so that these pins must be ...

Page 6

A MATLAB or Excel program for calculating the component values is available. For improved APLL performance, utilization of specific calculated values is recommended over the general purpose ones shown in Figure 1. Symbol NCO As the data flows through the ...

Page 7

The SYMBOL NCO 32-bit Phinc value is adjusted automatically such that the SYMBOL NCO runs at the input rate of the interpolating filter, since this is the fastest rate prior to the FSout rate. Table 1 lists possible filter configurations ...

Page 8

NCO divider<13:0> REFCLK divider<7:0> 8-BIT COUNTER REFCLK TC 14-bit countValue enable SYNC CLK frequencyGain freqError<15:0> lagGain phaseError<21:0> leadGain positive lockedValue negative notLockedValue threshold<20:0> phaseErrorMag<20:0> analogPLLlockStatus useAPLLlockStatus The Lock Detector compares the magnitude of the phaseError to a programmable 21-bit threshold ...

Page 9

Front-End Data Input Block The HSP50415 accepts input data in a parallel bit fashion with I and Q samples input serially as shown in Figure 5. The signal pins on the device that input data to the front-end are the ...

Page 10

Iout<3:0>:Qout<3:0>. See Figure 7 for a constellation mapping example. For bit widths less than 4-bits the data in the RAM may simply be zero’s for the unused bit positions and the unused addresses since the HSP50415 will discard the unused ...

Page 11

The extra bit is carried to check for overflow at the output of the shifter. The output of the multiplier (multOut<22:6>) is then shifted to the appropriate position per ...

Page 12

Typical Performance Curves 0 -10 INTERPOLATION FILTER RESPONSE -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 0 512 1024 1536 2048 2560 SAMPLE TIMES FIGURE 9. RESPONSE FOR L = 16; FOUT = 4096 0.1 0 -0.1 ...

Page 13

Typical Performance Curves 0 INTERPOLATION FILTER RESPONSE -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 0 512 1024 SAMPLE TIMES FIGURE 15. RESPONSE FOR FOUT = 4096 -100 -110 -120 Carrier NCO and ...

Page 14

NORMALIZED FREQUENCY FIGURE 18. X/SIN(X) FILTER RESPONSE I/Q Gain Imbalance Correction Stage Following the X/SIN(X) filter pair is a gain stage where I and ...

Page 15

These outputs can be used in a differential-to-single-ended arrangement to achieve better harmonic rejection. The SFDR measurements in this data sheet were performed with a 1:1 transformer on the output of the DAC (see Figure 19). With the center tap ...

Page 16

WR ADDR<2:0> CDATA<7:0> FIGURE 20. CONTROL REGISTER LOADING SEQUENCE There should be at least 4 digital core clock cycles between writing to address 4 and reloading the MasterReg as the data from ...

Page 17

Table 9 demonstrates the sequence of writes necessary to load memory location 0 of the I and Q channel coefficient RAMs simultaneously. If auto-increment address mode had been enabled, then the ...

Page 18

When writing to the constellation map RAM, when the word select counter is equal to 0 and a memUpdate strobe occurs, memBuf<71:64> data is written to memAddr<7:0> of the constellation map RAM. When reading back the memories, The sequence is ...

Page 19

ADDRESS BIT WIDTH 00 8 Memory Write/Read Controls Device Configuration Controls FIFO And I/O Control FIFO Upper Threshold and I Channel Gain FIFO Lower Threshold and Q Channel ...

Page 20

TABLE 15. DEVICE CONFIGURATION CONTROL (Continued) BIT NO. 12 2-bit Filter Mode. Input data at 2x rate with ½ # taps used. 11:10 Shaping Filter Interpolation 16x ...

Page 21

BIT NO. 17 FIFO TXEN Gated Read 0 = FIFO reads not gated by TXEN (reads begin after 2 FIFO locations written TXEN Pin gates read from FIFO 16 FIFO Underflow/Empty Pin Function 0 = Output FIFO underflow ...

Page 22

BIT NO. 31:24 FIFO Threshold Lower Limit<7:0> 23:14 Q Scale Factor<9:0> 13 Offset <9:0> Negate Scale Factor 2 Q Subtract DC Offset 1:0 Q Programmable Round Rounding Round to 14-bits ...

Page 23

BIT NO. 31 Use Analog PLL lock status bit for Lock Detection 30:28 Analog PLL VCO divider 000 = 1x B 001 = 2x B 010 = 4x B 011 = 8x B 100 = 16x B 101 = 32x ...

Page 24

BIT NO. 7 Not Used 6 FIFO Full 5 FIFO Empty 4 FIFO Overflow 3 FIFO Underflow 2 Digital PLL Lock Detect 1 Analog PLL Lock Detect 0 Reset Done BIT NO. 31:0 Carrier NCO Frequency Step BIT NO. 31:0 ...

Page 25

... ADDRESS = 12 H DESCRIPTION Evaluation Kit The HSP50415EVAL1 is an evaluation kit for the HSP50415 wideband programmable modulator. The kit consists of an evaluation Circuit Card Assembly complete with the HSP50415 device and additional circuitry to provide for control via a computer parallel port. Windows based ...

Page 26

Absolute Maximum Ratings Supply Voltage (VDD to GND .6V All Signal Pins . ...

Page 27

VDD = +3.3V ±5%, T Electrical Specifications PARAMETER DATACLK Low, t DCL Setup Time Hold Time CHARACTERISTICS: DIGITAL STATUS / DATA REFCLK Frequency, f RCK REFCLK High, t RCH REFCLK Low, t RCL Digital Status ...

Page 28

Waveforms CLK t t CLK RTS t RESET FIGURE 22. CLK AND RELATIVE RESET TIMING WR CDATA<7:0>, ADDR<2:0>, AND FIGURE 24. TIMING RELATIVE TO WR, LOADING SEQUENCE AND ADDR. ...

Page 29

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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