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TMC2330A

Coordinate Transformer

16 x 16 Bit, 40 MOPS

Features

• Rectangular-to-Polar or Polar-to-Rectangular conversion

at guaranteed 40 MOPS pipelined throughput rate

• Polar data: 16-bit magnitude, 32-bit input/16-bit output

phase

• 16-bit user selectable two’s complement or sign-and-

magnitude rectangular data formats

• Input register clock enables and asynchronous output

enables simplify interfacing

• User-conﬁgurable phase accumulator for waveform

synthesis and amplitude, frequency, or phase modulation

• Magnitude output data overﬂow ﬂag (in Polar-to-

Rectangular mode)

• Low power consumption CMOS process

• Single +5V power supply

• Available in a 120-pin plastic pin grid array package

(PPGA), 120-pin ceramic pin grid array package (CPGA),

120-pin MQFP to PPGA (MPGA) package, and 120-pin

metric quad ﬂatpack package (MQFP)

Description

The TMC2330A VLSI circuit converts bidirectionally

between Cartesian (real and imaginary) and Polar (magnitude

and phase) coordinates at up to 40 MOPS (Million Operations

Per Second).

In its Rectangular-to-Polar mode, the TMC2330A can extract

phase and magnitude information or backward “map” from a

rectangular raster display to a radial (e.g., range-and-azimuth)

data set.

The Polar-to-Rectangular mode executes direct digital waveform

synthesis and modulation. The TMC2330A greatly simpliﬁes

real-time image-space conversion between the radially-generated

image scan data found in radar, sonar, and medical imaging

systems, and raster display formats.

All input and output data ports are registered, and a new trans-

formed data word pair is available at the output every clock

cycle. The user-conﬁgurable phase accumulator structure,

input clock enables, and asynchronous three-state output bus

enables simplify interfacing. All signals are TTL compatible.

Fabricated in a submicron CMOS process, the TMC2330A

operates at up to the 40 MHz maximum clock rate over the full

commercial (0 to 70°C) temperature and supply voltage ranges,

and is available in 120-pin plastic pin grid array, 120-pin

ceramic pin grid array, 120-pin metric quad ﬂatpack to PPGA

package, and 120-pin metric quad ﬂatpack packages.

Applications

•

Scan conversion (phased array to raster)

Vector magnitude estimation

Range and bearing derivation

Spectral analysis

Digital waveform synthesis, including quadrature

functions

• Digital modulation and demodulation

Logic Symbol

ENXR

16

XRIN

15-0

DATA

INPUTS

ENYP

1-0

32

YPIN

31-0

OEPY

2

ACC

1-0

CONFIGURATION

CONTROLS

TCXY

RTP

CLK

OVF

16

PYOUT

15-0

16

RXOUT

15-0

DATA

OUTPUTS

OERX

TMC2330A

REV. 1.1.8 10/31/00

PRODUCT SPECIFICATION

TMC2330A

Block Diagram

XRIN

15-0

ENXR

YPIN

31-0

ENYP

1-0

ACC

1

ACC

0

16

32

2

1

2

M

C

32

AM

32

PM

32

FM

16

32

2

3

16

TCXY

RPT

TRANSFORMATION PROCESS

4-21

16

4-21

16

22

16

22

16

OERX

OVF

RXOUT

15-0

PYOUT

15-0

OEPY

Functional Description

The TMC2330A converts between Rectangular (Cartesian)

and Polar (Phase and Magnitude) coordinate data word pairs.

The user selects the numeric format and transformation to be

performed (Rectangular-To-Polar or Polar-To-Rectangular),

and the operation is performed on the data presented to the

inputs on the next clock. The transformed result is then

available at the outputs 22 clock cycles later, with new out-

put data available every 20ns with a 40 MHz clock. All input

and output data ports are registered, with input clock enables

and asynchronous high-impedance output enables to sim-

plify connections to system buses.

When executing a Rectangular-To-Polar conversion, the input

ports accept 16-bit Rectangular coordinate words, and the out-

put ports generate 16-bit magnitude and 16-bit phase data. The

user selects either two’s complement or sign-and-magnitude

Cartesian data format. Polar magnitude data are always in

magnitude format only. Since the phase angle word is modulo

2

π

, it may be regarded as either unsigned or two’s complement

format (Tables 1 and 2)

.

In Polar-To-Rectangular mode, the input ports accept 16-bit

Polar magnitude and 32-bit phase data, and the output ports

produce 16-bit Rectangular data words. Again, the user

selects between two’s complement or sign-and-magnitude

Cartesian data format.

2

REV. 1.1.8 10/31/00

TMC2330A

PRODUCT SPECIFICATION

Table 1. Data Input/Output Formats—Integer Format

Port

XRIN

YPIN

RXOUT

PYOUT

RTP

0

1

0

1

0

1

0

1

TCXY

X

0

1

X

0

1

0

1

X

0

1

X

±2

0

Bit #

31

30

29

…

16

15

2

15

14

2

14

2

14

2

14

2

-17

…

0

2

0

2

0

2

0

2

-31

Format

U

S

T

(x

π

)T/U

S

T

NS

–2

15

2

-1

2

14

2

14

2

-2

2

13

2

13

NS

–2

15

…

2

-15

2

0

2

0

2

-16

NS

–2

15

2

15

2

14

2

14

2

14

2

14

2

14

2

-1

2

0

2

0

2

0

2

0

2

0

2

-15

S

T

U

S

T

(x

π

)T/U

NS

–2

15

±2

0

Table 2. Data Input/Output Formats—Fractional Format

Port

XRIN

YPIN

RXOUT

PYOUT

Bit #

RTP

0

1

0

1

0

1

0

1

TCXY

X

0

1

X

0

1

0

1

X

0

1

X

±2

0

31

30

29

…

16

15

2

0

14

2

-1

2

-1

2

-1

2

-17

…

0

2

-15

2

-15

2

-15

2

-31

Format

U

S

T

(x

π

)T/U

S

T

NS

–2

0

2

-1

2

-1

2

-1

2

-2

2

-2

2

-2

NS

-2

0

…

2

-15

2

-15

2

-15

2

-16

NS

–2

0

2

0

2

-1

2

-1

2

-1

2

-1

2

-1

2

-1

…

2

-15

2

-15

2

-15

2

-15

2

-15

2

-15

S

T

U

S

T

(x

π

)T/U

NS

–2

0

±2

0

Notes:

1. -2

15

denotes two’s complement sign bit.

2. NS denotes negative sign, i.e., ‘1’ negates the number.

3. ±2

0

denotes two’s complement sign or highest magnitude bit – since phase angles are modulo 2

π

and phase accumulator is

modulo 2

32

, this bit may be regarded as +

π

or -

π

.

4. All phase angles are in terms of

π

radians, hence notation “x

π

.”

5. If A

CC

= 00, YPIN(15-0) are “don’t cares.”

6. Formats:

T = Two’s Complement

S = Signed Magnitude

U = Unsigned

HEX

FFFF

…

8001

8000

7FFF

…

0001

0000

U

65535

…

32769

32768

32767

…

1

0

T

–1

…

-32767

-32768

32767

…

1

0

S

-32767

…

-1

0

32767

…

1

0

REV. 1.1.8 10/31/00

3

PRODUCT SPECIFICATION

TMC2330A

Static Control Inputs

The controls RTP and TCXY determine the transformation

mode and the assumed numeric format of the Rectangular

data. The user must exercise caution when changing either of

these controls, as the new transformed results will not be

seen at the outputs until the entire internal pipe (22 clocks)

has been ﬂushed. Thus, these controls are considered static.

Pin Assignments

120-Pin MQFP

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Name

VDD

PYOUT4

PYOUT3

GND

PYOUT2

PYOUT1

PYOUT0

VDD

OEPY

GND

RTP

CLK

GND

TCXY

ENPY

GND

ENPY1

ACC0

ACC1

VDD

YPIN0

YPIN1

YPIN2

YPIN3

YPIN4

YPIN5

YPIN6

GND

YPIN7

YPIN8

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

Name

GND

YPIN9

YPIN10

VDD

YPIN11

YPIN12

YPIN13

YPIN14

YPIN15

YPIN16

YPIN17

VDD

YPIN18

YPIN19

YPIN20

GND

YPIN21

YPIN22

YPIN23

VDD

YPIN24

YPIN25

YPIN26

YPIN27

YPIN28

YPIN29

YPIN30

YPIN31

ENXR

XRIN0

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

Name

VDD

XRIN1

XRIN2

GND

XRIN3

XRIN4

XRIN5

GND

XRIN6

XRIN7

XRIN8

XRIN9

XRIN10

XRIN11

XRIN12

GND

XRIN13

XRIN14

XRIN15

VDD

OERX

GND

RXOUT15

VDD

RXOUT14

RXOUT13

RXOUT12

GND

RXOUT11

RXOUT10

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

Name

VDD

RXOUT9

RXOUT8

GND

RXOUT7

RXOUT6

RXOUT5

GND

RXOUT4

RXOUT3

RXOUT2

VDD

RXOUT1

RXOUT0

OVF

GND

PYOUT15

PYOUT14

PYOUT13

VDD

PYOUT12

PYOUT11

PYOUT10

GND

PYOUT9

PYOUT8

PYOUT7

GND

PYOUT6

PYOUT5

Pin 1

4

REV. 1.1.8 10/31/00

TMC2330A

PRODUCT SPECIFICATION

Pin Assignments

(continued)

120-Pin PPGA, H5 Package and 120-Pin CPGA, G1 Package and 120-Pin Metric Quad Flatpack to

120-Pin Plastic Pin Array, H6 Package

1

A

B

C

D

E

F

G

H

J

K

L

M

N

Top View

Cavity Up

KEY

2

3

4

5

6

7

8

9

10 11 12 13

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

B1

B2

B3

B4

B5

B6

B7

B8

B9

B10

B11

B12

B13

C1

C2

C3

C4

Name

PYOUT5

PYOUT7

PYOUT8

PYOUT10

PYOUT12

PYOUT14

PYOUT15

RXOUT0

RXOUT2

RXOUT4

RXOUT6

RXOUT8

RXOUT10

PYOUT3

PYOUT4

PYOUT6

PYOUT9

PYOUT11

PYOUT13

OVF

RXOUT1

RXOUT3

RXOUT5

RXOUT7

RXOUT9

RXOUT12

PYOUT1

PYOUT2

VDD

GND

C5

C6

C7

C8

C9

C10

C11

C12

C13

D1

D2

D3

D11

D12

D13

E1

E2

E3

E11

E12

E13

F1

F2

F3

F11

F12

F13

G1

G2

G3

Name

GND

VDD

GND

VDD

GND

VDD

RXOUT11

RXOUT13

OEPY

PYOUT0

GND

RXOUT14

RXOUT15

RTP

GND

VDD

GND

OERX

TCKY

GND

CLK

VDD

RXIN15

RXIN14

ENPY1

ENPY0

GND

G11

G12

G13

H1

H2

H3

H11

H12

H13

J1

J2

J3

J11

J12

J13

K1

K2

K3

K11

K12

K13

L1

L2

L3

L4

L5

L6

L7

L8

L9

Name

GND

XRIN12

RXIN13

ACCO

ACC1

VDD

XRIN9

XRIN10

XRIN11

YPIN0

YPIN1

YPIN3

GND

XRIN7

XRIN8

YPIN2

YPIN4

GND

XRIN5

XRIN6

YPIN5

YPIN7

GND

VDD

YPIN14

VDD

GND

VDD

YPIN27

L10

L11

L12

L13

M1

M2

M3

M4

M5

M6

M7

M8

M9

M10

M11

M12

M13

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

N12

N13

Name

YPIN31

VDD

XRIN3

XRIN4

YPIN6

YPIN9

YPIN11

YPIN13

YPIN16

YPIN18

YPIN20

YPIN23

YPIN25

YPIN28

ENXR

XRIN1

XRIN2

YPIN8

YPIN10

YPIN12

YPIN15

YPIN17

YPIN19

YPIN21

YPIN22

YPIN24

YPIN26

YPIN29

YPIN30

XRIN0

Pin Descriptions

Pin Number

Pin Name

MQFP

CPGA/PPGA/

MPGA

Description

Power, Ground and Clock

V

DD

1, 8, 20, 34, 42, C3, E3, H3, L4, L6, The TMC2330A operates from a single +5V supply. All

50, 61, 80, 84, 91, L8, L11, F11, E11, power and ground pins must be connected.

102, 110

C11, C8, C6

4, 10, 13, 16, 28, D3, E2, F2, G3,

31, 46, 64, 68, 76, K3, L3, L7, K11,

82, 88, 94, 98,

J11, G11, E12,

106, 114, 118

D11, C10, C9, C7,

C5, C4

Ground

GND

REV. 1.1.8 10/31/00

5

TMC2330AG1C1

TMC2330AG1C1概述

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