TMC2242AR2C1 Fairchild Semiconductor, TMC2242AR2C1 Datasheet - Page 7

• Manufacturer Part Number: TMC2242AR2C1
• Description: Video ICs Interp/Decim Filter Digital HB 12B/16B
• Manufacturer: Fairchild Semiconductor
• Type: Digital Half Band Filtersr

Specifications of TMC2242AR2C1

• Operating Supply Voltage: - 0.5 V to + 7 V
• Supply Current: 195 mA
• Maximum Operating Temperature: 70 C
• Package / Case: PLCC-44
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TMC2242A/TMC2242B
Table 4b. Output Data Formats and Bit Weighting for TCO = 1
Interpolation Mode (TMC2242A and TMC2242B when INT = 0 and DEC = 1)
Decimation, Equal Rate Modes (and TMC2242B in unity gain interpolate mode with INT = DEC = 0)
Rounded LSBs as a function of RND
Notes:
1. A leading minus sign denotes the two’s complement sign bit.
2. When TCO=0, the most significant bit of the output is positive instead of negative.
3. In all operating modes except INT = 0 and DEC = 1, the gain is approximately unity. When INT = 0 and DEC = 1, the output
4. The "r" indicates that the trailing significant output bit has been rounded to the nearest 1/2 LSB. (Internally, the chip adds 1 to
Table 5. TMC2242A Steady-State Output Values and Limiter Triggers (L) versus Input Data
SO
SO
SO
SO
SO
SO
SO
SO
-2
-2
gain is -6 dB.
the next lower bit, to allow the user to obtain a properly rounded output)
1
15
15
15
15
15
15
15
15
0
Input
FFF
C00
7FF
400
001
000
801
SO
SO
SO
SO
SO
SO
SO
SO
2
2
0
-1
14
14
14
14
14
14
14
14
SO
SO
SO
SO
SO
SO
SO
SO
2
2
-1
-2
13
13
13
13
13
13
13
13
FFFF (L)
TCO = 0
0000 (L)
…
…
…
…
…
…
…
…
…
7FEF
3FE7
7FFF
C017
800F
…
INT = 1 or DEC = 0
SO
SO
SO
SO
SO
SO
SO
SO
2
2
6
-7
8
8
8
8
8
8
8
8
2-0
SO
SO
SO
SO
SO
SO
SO
SO
2
2
-7
-8
7r
7
7
7
7
7
7
7
7FFF (L)
TCO = 1
8000 (L)
BFE8
FFF0
4018
0010
0000
SO
SO
SO
SO
SO
SO
SO
2
2
0
-8
-9
6r
6
6
6
6
6
6
SO
SO
SO
SO
SO
SO
2
2
0
0
-10
-9
5r
5
5
5
5
5
5FF7 / 5FEF
C007 / C017
3FF7 / 3FE7
A007 / A00F
TCO = 0
SO
SO
SO
SO
SO
2
7FF7
7FFF
8007
2
-10
0
0
0
INT = 0 and DEC = 1
-11
4r
4
4
4
4
SO
SO
SO
SO
2
2
-11
0
0
0
0
-12
3r
3
3
3
DFF8 / DFF0
BFF8 / BFE8
SO
4008 / 4018
2008 / 2010
SO
SO
2
2
TCO = 1
-12
0
0
0
0
0
-13
2r
FFF8
0008
0000
2
2
SO
SO
2
2
-13
0
0
0
0
0
0
-14
PRODUCT SPECIFICATION
1r
1
SO
2
2
Interpretation
-14
0
0
0
0
0
0
0
-15
0r
+ full-scale
+1/2 scale
- full-scale
-1/2 scale
+1 LSB
-1 LSB
Zero
RND
000
001
010
011
100
101
110
111
2-0
7