Electronic Components Datasheet Search |
|
GC5328IZER Datasheet(PDF) 4 Page - Texas Instruments |
|
GC5328IZER Datasheet(HTML) 4 Page - Texas Instruments |
4 / 27 page GC532x BBFR TXSYNCREFERENCE DGND SYNC A SYNC B SYNC C CustomerLOGIC BBDATA[17:2] B0370-01 BBCLK START_FRAME TIME DIVISON MULTIPLEXED BASEBAND DATA TXSYNC REFERENCE TXSYNC2 REFERENCE BASEBANDCLOCK(CMOS) LOWJITTER BBCLK START ofMUX-FRAME BBDATA[1:0] TXSYNC2REFERENCE BBDATA[15:0] MFIO[19:18] GC5328 SLWS218A – OCTOBER 2009 – REVISED OCTOBER 2009 www.ti.com Figure 3. Baseband and Sync Interface to GC5328 BASEBAND CLOCK INPUT The baseband clock input is a CMOS, low-jitter clock. GAIN/PILOT INSERTION/AntCal INSERTION/POWER METER Baseband gain can be applied on a per-carrier basis to control the individual channel power accurately through the system. A UMTS pilot sequence at a programmable gain can be added for antenna calibration. Each individual baseband channel has an integrated I2 + Q2 power accumulator. The baseband power meters have a common integration counter and interval counter for all channels. The GPP block has an IPDL detection and control section to select one of four CFR memories when IPDL autoselection is used. Normally, IPDL 0 is manually selected. DIGITAL UPCONVERTERS (DUCs) The GC5328 DUC block has interpolation filters, programmable delays, and complex mixers for each channel. There are two DUC blocks within the GC5328. The sum chain after the DUC channel combines the DUC channel streams or the bypass stream and sends the data to the CFR block. Each DUC can operate in one wide, two medium, or six CDMA channels. Each DUC has a PFIR for spectral shaping, a CFIR for interpolation and image rejection, and a bulk interpolation CIC. The 2 DUCs can support: • (6 channel/DUC mode) up to 12 – 1.23(8) Mhz CDMA, 1xEVDO, or TDSCDMA carriers • (2 channel/DUC mode) up to 4 – WCDMA or LTE-5 carriers • (1 channel/DUC mode) up to 2 – Wibro, Wimax, LTE 10 carriers • (1 channel/DUC mode) 1 – Wimax or LTE20 carrier Users can specify the filter characteristics of the DUC. The filters are the programmable finite impulse response (PFIR), compensating finite impulse response (CFIR), and cascade integrator comb (CIC) filters. Users can also specify the center frequencies of each carrier with a resolution of 0.25 mHz. Additional controls available in the DUCs include bulk and fractional-time delay adjustments, phase adjustments, and equalization. The maximum DUC output bandwidth is 40 MHz. 4 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): GC5328 |
Similar Part No. - GC5328IZER |
|
Similar Description - GC5328IZER |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |