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DAC1658Q1G5NAGA Datasheet(HTML) 40 Page - Integrated Device Technology

Part No. DAC1658Q1G5NAGA
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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DAC1658Q1G5NAGA Datasheet(HTML) 40 Page - Integrated Device Technology

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DAC1653Q/DAC1658Q
© IDT 2013. All rights reserved.
Advance data sheet
Rev. 1.03 — 13 May 2013
40 of 101
Integrated Device Technology
DAC1653Q/DAC1658Q
Quad 16-bit DAC: 10 Gbps JESD204B interface; up to 1.50 Gsps
In normal operating mode, the state machine is in IDLE state. The digital gains are
specified by the user.
Various mute events can be detected in the DAC. These trigger the MUTE state. Once the
MUTE state is entered, the DAC automatically sets the digital gains to zero using several
mute actions. The mute actions SOFT mute and HOLD mute drop to zero gradually. The
mute action HARD mute drop to zero instantly (see Figure 22).
When the digital gains have been set to zero, the state machine enters the WAIT state. In
this state, the gains are kept at zero. The state machine stays in this mode until the end of
the wait period and the mute event is not deasserted.
When the mute event is cleared and the wait period elapsed, the state machine enters the
DEMUTE state. In this state, the digital gains are set again to the initial values. This is
done relatively to the mute rate setting. If during this state, a new mute event is triggered,
the state machine enters the MUTE state again. The gain decreases from the current
gains values, not from the initial ones.
When the digital gains reach the initial values, the state machine enters the IDLE state
again.
Block 0080h = DAC A/B
Block 0280h = DAC C/D
Block 0480h = All DACs
Fig 20. Automute overview
BLOCK 0080h/0280h/0480h: INTERFACE DAC DSP - AUTOMUTE
LVL_DET_SEL_XY
IGN_RF_EN_XY
SW_MUTE_XY
ALARM_CLR_XY
ALARM
IQR_ERR_XY
SPD_OVF_XY
DATA_IQ_VALID_XY
MDS_BSY_XY
LVL_DET_OR_XY
TEMP_ALARM_XY
CA_ERR_XY
ERR_RPT_FLAG_XY
CLK_MON_XY
ALARM_CFG_XY
HARD MUTE + MUTE_IQ
HOLD MUTE + MUTE_IQ
SOFT MUTE + MUTE_IQ
SOFT MUTE
DATA_INVALID_CFG_XY
HARD MUTE + MUTE_IQ
HOLD MUTE + MUTE_IQ
SOFT MUTE + MUTE_IQ
SOFT MUTE
INCIDENT_CFG_XY
HARD MUTE + MUTE_IQ
HOLD MUTE + MUTE_IQ
SOFT MUTE + MUTE_IQ
SOFT MUTE
DIRECT_CFG_XY
HARD MUTE + MUTE_IQ
HOLD MUTE + MUTE_IQ
SOFT MUTE + MUTE_IQ
SOFT MUTE
MUTE_EN_XY
DATA INVALID
DIRECT CONFIG
INCIDENT
ERF_INCIDENT_EN_XY
SPD_INCIDENT_EN_XY
LVL_DET_EN_XY
IQR_INCIDENT_EN_XY
IGN_MDS_BSY_XY
IGN_DATA_INVALID_XY
HOLD_DATA_XY
0
Δ
0
Δ
2Δ3Δ4Δ
0
Δ
2Δ3Δ4Δ
0
Δ
2Δ3Δ4Δ
ALARM_MRATE
DATA_MRATE
INCIDENT_MRATE
DIRECT_MRATE


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