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DAC1653Q Datasheet(HTML) 39 Page - Integrated Device Technology

Part No. DAC1653Q
Description  Quad 16-bit DAC: 10 Gbps JESD204B interface: up to 1.50
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Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
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DAC1653Q Datasheet(HTML) 39 Page - Integrated Device Technology

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DAC1653Q/DAC1658Q
© IDT 2013. All rights reserved.
Advance data sheet
Rev. 1.03 — 13 May 2013
39 of 101
Integrated Device Technology
DAC1653Q/DAC1658Q
Quad 16-bit DAC: 10 Gbps JESD204B interface; up to 1.50 Gsps
(6)
(7)
(8)
(9)
The output current of DAC B depends on the digital input data and the gain factor defined
by bits DAC_Y_DGAIN[11:0] of register DAC_Y_DGAIN_MSB and DAC_Y_DGAIN_LSB .
(10)
(11)
(12)
(13)
Table 18 shows the output current as a function of the input data, when
IOA(fs) = IOB(fs) = 20 mA.
11.2.3.10 Auto-mute
The DAC165xQ provides a new auto-mute feature allowing muting the DAC analog output
if a conditional event occurs. The auto-mute feature is based on a state machine as
described in Figure 21 and on the control of the digital gains.
Table 18.
DAC transfer function
Data
I15 to I0/Q15 to Q0
(binary coding)
I15 to I0/Q15 to Q0
(two’s complement
coding
IOUTA_P/
IOUTB_P
IOUTA_N/
IOUTB_N
0
0000 0000 0000 0000 1000 0000 0000 0000
0 mA
20 mA
...
...
...
...
....
32768
1000 0000 0000 0000 0000 0000 0000 0000
10 mA
10 mA
...
...
...
...
...
65535
1111 1111 1111 1111
0111 1111 1111 1111
20 mA
0 mA
I IOUTA_P
I OA fs

DAC_ X _DGAIN

4096
--------------------------------------------------
DATA
65535
----------------
=
I IOUTA_N
I OA fs

1
DAC_ X _DGAIN

4096
--------------------------------------------------
DATA
65535
----------------


=
I IOUTC_P
I OA fs

DAC_ X _DGAIN

4096
--------------------------------------------------
DATA
65535
----------------
=
I IOUTC_N
I OA fs

1
DAC_ X _DGAIN

4096
--------------------------------------------------
DATA
65535
----------------


=
I IOUTB_P
I OB fs

DAC_Y _DGAIN

4096
-------------------------------------------------
DATA
65535
----------------
=
I IOUTB_N
I OB fs

1
DAC_Y _DGAIN

4096
-------------------------------------------------
DATA
65535
----------------


=
I IOUTD_P
I OB fs

DAC_Y _DGAIN

4096
-------------------------------------------------
DATA
65535
----------------
=
I IOUTD_N
I OB fs

1
DAC_Y _DGAIN

4096
-------------------------------------------------
DATA
65535
----------------


=


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