參數(shù)資料
型號: GF9102ACTM
廠商: Electronic Theatre Controls, Inc.
英文描述: Pin Strip Header; No. of Contacts:36; Pitch Spacing:0.1"; No. of Rows:1; Contact Material:Copper Alloy; Contact Plating:Gold; Leaded Process Compatible:Yes; Mounting Type:PCB Straight Thru Hole; Peak Reflow Compatible (260 C):No RoHS Compliant: Yes
中文描述: 元氣/內(nèi)插數(shù)字濾波器
文件頁數(shù): 5/11頁
文件大?。?/td> 300K
代理商: GF9102ACTM
5
521 - 26 - 02
Table 1: Input Data Format and Bit Weighting
Two’s complement signed binary, data range: -1
SI < 1
SI
11
-2
0
SI
10
2
-1
SI
9
2
-2
SI
8
2
-3
SI
7
2
-4
SI
6
2
-5
SI
5
2
-6
SI
4
2
-7
SI
3
2
-8
SI
2
2
-9
SI
1
2
-10
SI
0
2
-11
Unsigned binary, data range: 0
SI < 256
SI
11
2
7
SI
10
2
6
SI
9
2
5
SI
8
2
4
SI
7
2
3
SI
6
2
2
SI
5
2
1
SI
4
2
0
SI
3
2
-1
SI
2
2
-2
SI
1
2
-3
SI
0
2
-4
Table 2: Output Data Format and Bit Weighting
Two’s complement signed binary, data range: -1
SO < 1
SO
15
SO
14
2
-1
SO
13
2
-2
SO
12
2
-3
SO
11
2
-4
SO
10
2
-5
SO
9
2
-6
SO
8
2
-7
SO
7
2
-8
SO
6
2
-9
SO
5
SO
4
SO
3
SO
2
SO
1
2
-10
2
-11
2
-12
2
-13
2
-14
SO
0
2
-15
-2
0
Unsigned binary, data range: 0
SO < 256
SO
15
2
7
SO
14
SO
13
2
6
SO
12
2
4
SO
11
2
3
SO
10
2
2
SO
9
2
1
SO
8
2
0
SO
7
2
-1
SO
6
2
-2
SO
5
2
-3
SO
4
2
-4
SO
3
2
-5
SO
2
2
-6
SO
1
2
-7
SO
0
2
-8
2
5
Table 3: Operation Mode Control
DEC INT Sync Mode Description Device Latency Notes
0
0
0
Bandpass1
21 Tap Bandpass
18 Clock Cycles
2
0
0
1
Bandpass2
9 Tap Bandpass Gain=2
18 Clock Cycles
2
0
1
Sync
Decimating
Gain=1
33 Clock Cycles
1
1
0
Sync
Interpolating
Gain=0.5
33 Clock Cycles
1
1
1
0
1
Sync
Sync
Interpolating
Pass through
Gain=1 for unsigned input
3
Top 12 bit pass through
33 Clock Cycles
33 Clock Cycles
2
2
Notes:
1. This operating mode is compatible with TMC2242.
2. This is an enhanced operating mode of the GF9102A.
3. This mode is invoked using the SO
0
pin. See I/O Format control below.
Table 4:
I/
O Format Control
RND
2..0
RND = 000
SO
0
Output
3
TCO
Input
5
Output
5
Notes
0
Signed
I_Unsigned
1
1
Signed
Signed
RND
000
0
0
Signed
I_Unsigned
1
1
Signed
Unsigned
4
Signed
RND
000
1
0
Unsigned
2
1
Unsigned
Signed Limit output up to 15 bits
Notes:
1.
2.
3.
This operating mode is compatible with TMC2242.
This is an enhanced operating mode of the GF9102A.
SO
0
, the LSB of the output is a bi-directional pad with a large pull-down resistor. This pin does not have to be connected.
When this pin is not connected the GF9102A defaults to a mode compatible with the TMC2242.
Application notes for the TMC2242 suggest grounding the MSB of the input if the input data is unsigned as
in most A/D converters. This method limits the input to 11 bits and leads to potential output non-saturated type overflow
since the MSB of the output is ignored.
Signed: two’s complement binary data.
I_unsigned: invert all bits in signed data except for the MSB; also called inverted offset binary.
Unsigned: invert MSB of signed data; also called offset binary.
4.
5.
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