AD9174 datasheet(29/164 Pages) AD

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Data Sheet

AD9174

Rev. A | Page 29 of 164

Table 13. JESD204B Supported Operating Modes and Interpolation Combinations

Application

JESD204B Operation Modes

Channel Datapath

Main DAC Datapath

Maximum

Instantaneous

Bandwidth

(MHz)3

Link

Modes

JESD204B

Modes

Lanes

per

Link

Channels

per DAC

Maximum

Channel Data

Rate (MSPS)1

Channel

Inter-

polation

Main Datapath

Interpolation

Maximum

DAC Rate

(GSPS)2

Channelizer Modes (All

Complex)

375 MHz

(N = 16 Bits)

Single-Channel

Single,

dual

385

2×

8×

6.16

308

385

4×, 6×

6×, 8×

12.6

308

Dual-Channel

Single,

dual

385

4×, 6×

6×, 8×

12.6

616

Triple-Channel

Single,

dual

385

4×, 6×

6×, 8×

12.6

924

500 MHz

(N = 12 Bits)

Single-Channel

Single,

dual

513

2×

6×

6.16

410.4

513

3×

6×, 8×

12.6

410.4

Dual-Channel

Single,

dual

513

3×

6×, 8×

12.6

750 MHz

(N = 16 Bits)

Single-Channel

Single,

dual

770

1×

8×

6.16

616

770

2×, 3×

6×, 8×

12.6

616

Dual-Channel

Single,

dual

770

2×, 3×

6×, 8×

12.6

616

385

4×

8×

12.6

308

187 MHz

(N = 16 Bits)

Dual-Channel

Single,

dual

192.5

8×

6×, 8×

12.6

154

Wideband Modes

(Complex or Real)

3000 MHz

(N = 16 Bits)

Complex

Single

10, 11

3080

1×

2×, 4×

12.6

2464

Real, Dual-DAC

Single

10, 11

3080

1×

3.08

1540

Real, Single- or

Dual-DAC

Single,

dual

18, 19

3080

1×

3.08

1540

1500 MHz

(N = 16 Bits)

Complex, Dual-

DAC

Single,

dual

8, 9

1540

1×

2×, 4×, 6×, 8×,

12×

12.6

24644

4000 MHz

(N = 12 Bits)

Complex

Single

4100

1×

2×5

8.2

3280

Real, Dual-DAC

Single

4100

4.1

2050

2000 MHz

(N = 12 Bits)

Complex, Dual-

DAC

Single,

dual

2050

1×

4×, 6×

12.6

32804

6000 MHz

(N = 16 Bits)

Real, Single-DAC

Single

20, 21

6160

1×

6.16

3080

The maximum data rate is calculated based on a maximum lane rate as listed in Table 7. The data rate is calculated based on the formula lane rate = (10/8) × NP × data rate ×

(M/L), where the NP, M, and L values depend on the selected mode.

The maximum DAC rate per mode depends on the voltage tolerance as well as the lane rate for a given configuration, as listed in Table 3. The maximum possible lane

rate is according to Table 7.

For complex modes, instantaneous bandwidth (IBW) is the bandwidth that both I and Q occupy (referred to as the combined I/Q bandwidth). The bandwidth for

complex modes is in part limited by the bandwidth of the interpolation filters. When the interpolation filters are bypassed to configure the AD9174 in real only mode,

IBW = ½ × data rate.

With a correct modulator switch configuration, the AD9174 can be configured to operate as a wideband, dual-channel DAC, with each channel to include its own main

datapath NCO. In this case, the modulator switch is configured to act as a summing node that feeds complex data from two datapaths to a single DAC core.

Only supported when JESD204B is configured for Subclass 1 operation.

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