AD6624AS Analog Devices Inc, AD6624AS Datasheet - Page 27

• Manufacturer Part Number: AD6624AS
• Manufacturer: Analog Devices Inc

Specifications of AD6624AS

• Lead Free Status / RoHS Status: Not Compliant

Ch Address
00–7F
80
81
82
83
84
85
86
87
88
89–8F
90
91
92
93
94
95
96
97–9F
A0
A1
A2
A3
A4
REV. B
Register
Coefficient Memory (CMEM)
CHANNEL SLEEP
Soft_Sync Control Register
Pin_SYNC Control Register
Start Hold-Off Counter
NCO Frequency Hold-Off Counter
NCO Frequency Register 0
NCO Frequency Register 1
NCO Phase Offset Register
NCO Control Register
rCIC2 Decimation–1
rCIC2 Interpolation–1
rCIC2 Scale
Reserved
CIC5 Decimation–1
Reserved
RCF Decimation–1
RCF Decimation Phase
RCF Number of Taps–1
RCF Coefficient Offset
RCF Control Register
Unused
CIC5 Scale
Unused
Table VIII. Channel Address Memory Map
–27–
Bit Width
20
1
2
3
16
16
16
16
16
9
12
9
12
8
8
5
8
8
8
8
8
11
Comments
128 × 20-Bit Memory
0:
1:
0:
2:
1:
0:
Start Hold-Off Value
NCO_FREQ Hold-Off Value
NCO_FREQ[15:0]
NCO_FREQ[31:16]
NCO_PHASE[15:0]
8–7:
6:
5–4:
3:
2:
1:
0:
M
L
11:
10:
9–5:
4–0:
Reserved (Must Be Written Low)
M
4–0:
Reserved (Must Be Written Low)
M
P
N
CO
10:
9:
8:
7:
6:
5–4:
rCIC2
RCF
TAPS
rCIC2
CIC5
RCF
RCF
–1
–1
–1
–1
–1
SLEEP Bit from EXT_ADDRESS 3
Hop
Start
First SYNC Only
Hop_En
Start_En
SYNC Input Select[1:0]
WB Input Select B/A
Input Enable Control
11:
10:
01:
00:
Clear Phase Accumulator On HOP
Amplitude Dither
Phase Dither
Bypass (A-Input -> I-Path, B -> Q)
Exponent Invert
Exponent Weight
rCIC2_QUIET[4:0]
rCIC2_LOUD[4:0]
CIC5_SCALE[4:0]
RCF Bypass BIST
RCF Input Select (Own 0, Other 1)
Program RAM Bank 1/0
Use Common Exponent
Force Output Scale
Output Format
1x:
01:
00:
3–0: Output Scale
Clock On IEN Transition to Low
Clock On IEN Transition to High
Clock On IEN High
Mask On IEN Low
Floating Point 12 + 4
Floating Point 8 + 4
Fixed Point
AD6624