參數(shù)資料
型號： ADSP-TS203SABPZ050
廠商： ANALOG DEVICES INC
元件分類： 數(shù)字信號處理
英文描述： 500 MHz TigerSHARC Processor with 4 Mbit on-chip embedded DRAM; Package: 576 ball SBGA; No of Pins: 576; Temperature Range: Ind
中文描述： 32-BIT, 125 MHz, OTHER DSP, PBGA576
封裝： 25 X 25 MM, MS-034, BGA-576
文件頁數(shù)： 10/48頁
文件大?。?/td> 2017K
代理商： ADSP-TS203SABPZ050
Rev. C
|
Page 18 of 48
|
December 2006
ADSP-TS203S
Table 13. Impedance Control Selection
CONTROLIMP1-0
Driver Mode
00 (recommended)
Normal
01
Reserved
10 (default)
A/D Mode
11
Reserved
Table 14. Drive Strength/Output Impedance Selection
DS2–0
Pins
Drive
Strength
1
Output
Impedance
2
000
Strength 0 (11.1%)
26
Ω
001
Strength 1 (23.8%)
32
Ω
010
Strength 2 (36.5%)
40
Ω
011
Strength 3 (49.2%)
50
Ω
100
Strength 4 (61.9%)
62
Ω
101 (default)
Strength 5 (74.6%)
70
Ω
110
Strength 6 (87.3%)
96
Ω
111
Strength 7 (100%)
120
Ω
1 CONTROLIMP1 = 0, A/D mode disabled.
2 CONTROLIMP1 = 1, A/D mode enabled.
Table 15. Pin Definitions—Power, Ground, and Reference
Signal
Type
Term
Description
VDD
Pna
VDD pins for internal logic.
VDD_A
Pna
VDD pins for analog circuits. Pay critical attention to bypassing this supply.
VDD_IO
Pna
VDD pins for I/O buffers.
VDD_DRAM
Pna
VDD pins for internal DRAM.
VREF
I
na
Reference voltage defines the trip point for all input buffers, except SCLK, RST_IN,
POR_IN, IRQ3–0, FLAG3–0, DMAR3–0, ID2–0, CONTROLIMP1–0, LxDATO3–0P/N,
LxCLKOUTP/N, LxDATI3–0P/N, LxCLKINP/N, TCK, TDI, TMS, and TRST. VREF can be
connected to a power supply or set by a voltage divider circuit as shown in Figure 6.
SCLK_VREF
I
na
System Clock Reference. Connect this pin to a reference voltage as shown in Figure 7.
VSS
Gna
Ground pins.
NC
—
nc
No Connect. Do not connect these pins to anything (not to any supply, signal, or each
other). These pins are reserved and must be left unconnected.
I = input; A = asynchronous; O = output; OD = open-drain output; T = three-state; P = power supply; G = ground; pd = internal pull-down
5k
Ω; pu = internal pull-up 5 kΩ; pd_0 = internal pull-down 5 kΩ on DSP ID = 0; pu_0 = internal pull-up 5 kΩ on DSP ID = 0; pu_od_0 = internal
pull-up 500
Ω on DSP ID = 0; pd_m = internal pull-down 5 kΩ on DSP bus master; pu_m = internal pull-up 5 kΩ on DSP bus master; pu_ad
= internal pull-up 40 k
Ω. For more pull-down and pull-up information, see Electrical Characteristics on Page 21.
Term (termination of unused pins) column symbols: epd = external pull-down approximately 5 k
Ω to VSS; epu = external pull-up approx-
imately 5 k
Ω to VDD_IO, nc = not connected; na = not applicable (always used); VDD_IO = connect directly to VDD_IO; VSS = connect directly to VSS
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