TMC2249A データシートの表示（PDF） - Raytheon Company

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TMC2249A

Digital Mixer 12 x 12 bit, 60 MHz

Raytheon Company 

PRODUCT SPECIFICATION

TMC2249A

Pin Descriptions

Pin Number

Pin Name

PGA

MQFP

Pin Function Description

Power

VDD

F3, H3, L7, C8 12, 20, 46, 102 Supply Voltage. The TMC2249A operates from a single +5V

supply. All power and ground pins must be connected.

GND

E3, G3, J3, L6, 8, 16, 24, 42, Ground. The TMC2249A operates from a single +5V supply. All

H11, C7

72, 106 power and ground pins must be connected.

Clock

CLK

C3

1

System Clock. The TMC2249A operates from a single master clock

input. The rising edge of clock strobes all enabled registers. All

timing specifications are referenced to the rising edge of CLK.

Inputs

A11-0

N8, M8, L8, 48, 49, 50, 51,

N9, M9, N10, 52, 53, 54, 55,

L9, M10, N11, 56, 57, 58, 59

N12, L10, M11

A-D Input. A through D are the four 12-bit registered data input

ports. A0-D0 are the LSBs (see Table 1). Data presented to the input

ports is clocked in to the top of the 16-stage delay pipeline on the

next clock when enabled, "pushing" data down the register stack.

B11-0

N7, M7, N6,

M6, N5, M5,

N4, L5, M4,

N3, M3, L4

47, 45, 44, 43,

41, 40, 39, 38,

37, 36, 35, 34

C11-0

A9, B9, A10, 101, 100, 99,

C9, B10, A11, 98, 97, 96, 95,

B11, C10, A12, 94, 93, 92, 91,

B12, C11, A13

90

D11-0

B8, A8, B7, A7, 103, 104, 105,

A6, B6, C6, A5, 107, 108, 109,

B5, A4, C5, B4 110, 111, 112

113, 114, 115

ADEL3-0

BDEL3-0

CDEL3-0

DDEL3-0

L11, M12, 61, 62, 63, 64

M13, K11

M2, L3, N1, L2 32, 31, 30, 29

D11, B13, 88, 87, 86, 85

C13, D12

A2, C4, B3, A1 117, 118, 119,

120

A-D Delay. ADEL through DDEL are the four-bit registered input

data pipe delay select word inputs. Data to be presented to the

multipliers is selected from one of sixteen stages in the input data

delay pipe registers, as indicated by the delay select word presented

to the respective input port during that clock. The minimum delay is

one clock (select word=0000), and the maximum delay is 16 clocks

(select word=1111). Following powerup these values are

indeterminate and must be initialized by the user.

CAS15-0

L13, K12, J11, 66, 67, 68, 69,

K13, J12, J13, 70, 71, 73, 74,

H12, H13, 75, 76, 77, 78,

G12, G11, 79, 80, 81, 82

G13, F13, F12,

F11, E13, E12

Cascade Input. CAS is the 16-bit Cascade data input port. CAS0 is

the LSB. See Table 1.

Controls

S15-0

C1, D2, D1,

E2, E1, F2, F1,

G2, G1, H1,

H2, J1, J2, K1,

K2, L1

6, 7, 9, 10, 11,

13, 14, 15, 17,

18, 19, 21, 22,

23, 25, 26

Sum Output. The current 16-bit result is available at the Sum output.

The output may be the most or least significant 16 bits of the current

accumulator output, as determined by SWAP. S0 is the LSB. See

Table 1.

5

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