GC5337 datasheet(15/49 Pages) TI

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Q0-E

Qn-E

I0-E

In-E

Q1-E

Q0-E

I1-E

I0-E

Q0-O

Qn-O

I0-O

In-O

Q1-O

Q0-O

I1-O

I0-O

In-D

Qn-A

Qn-C

In-B

Q0-D

I0-D

Q0-B

I0-B

Qn-D

I0-A

In-C

Qn-B

In-A

Q0-C

I0-C

Q0-A

I0-A

‘n’ can be up to 47, ‘O’ is odd numbered bits (1, 3, 5, ...), ‘E’ is even numbered bits (0, 2, 4, ...)

‘n’ can be up to 47, ‘A’ is 4 MSBs, ‘B’ is next 4 bits, ‘C’ is next 4 bits and ‘D’ is 4 LSBs

BBIN Data 0

BBIN Data 1

BBIN C k 0

BBIN Clk 0

BBIN Clk 1

BBIN Sync 0

BBIN Sync 1

Mode 1B

T0504-01

Mode 1N (1 Rate)

Mode 2N (2 Rates)

In-D

Qn-A

Qn-C

In-B

Q0-D

I0-D

Q0-B

I0-B

Qn-D

I0-A

In-C

Qn-B

In-A

Q0-C

I0-C

Q0-A

I0-A

Qn-D

Qn-E

Qn-G

Qn-B

I0-H

I0-D

I0-F

I0-B

Qn-H

I0-A

Qn-C

Qn-F

Qn-A

I0-G

I0-C

I0-E

I0-A

‘n’ can be up to 47, ‘A’ is 2 MSBs, ‘B’ is next 2 bits, ‘C’ is next 2 bits, ... and ‘H’ is 2 LSBs

BBIN Data 0

BBIN Data 1

BBIN Data 2

BBIN Clk 0

BBIN Clk 1

BBIN Clk 2

BBIN Sync 0

BBIN Sync 1

BBIN Sync 2

Mode 1S (1 Rate)

Mode 2S (2 Rates)

Mode 3S (3 Rates)

Qn-D

Qn-E

Qn-G

Qn-B

I0-H

I0-D

I0-F

I0-B

Qn-H

I0-A

Qn-C

Qn-F

Qn-A

I0-G

I0-C

I0-E

I0-A

GC5330

GC5337

www.ti.com

SLWS226 B

– DECEMBER 2010 – REVISED JANUARY 2011

Figure 11. TX BB Formats

The TX formatter block includes a per-channel TX gain adjust via a 16-bit complex digital word which can be set

to have gain between

–∞ and 9 dB.

Digital Down- and Upconverters (DDUCs)

The GC533x has four identical and independent DDUC blocks that can be configured as either DDC or DUC.

Each DDUC can support up to 12 channels with scalable bandwidth.

The only difference between the DUC and DDC configurations is the interpolate (DUC) versus decimate (DDC)

functions and the data path direction as shown in Figure 12. Both DDC and DUC are described in this section.

Note that each DDUC block must be configured statically as a DUC or DDC and cannot switch modes

dynamically in TDD applications.

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