參數(shù)資料
型號(hào): SAA2520GP
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Stereo filter and codec for MPEG layer 1 audio applications
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝: 14 X 14 X 2.20 MM, PLASTIC, QFP-44
文件頁數(shù): 28/36頁
文件大?。?/td> 151K
代理商: SAA2520GP
August 1993
28
Philips Semiconductors
Preliminary specification
Stereo filter and codec for MPEG layer 1
audio applications
SAA2520
Notes to Fig.22
t
eL
t
CH
t
CL
t
D1
t
D2
LTENA LOW time
LTCLK HIGH time
LTCLK LOW time
LTENA HIGH to LTCLK HIGH
LTENA HIGH to LTDATA
output low impedance
LTENA HIGH to LTDATA output valid
LTENA LOW to LTDATA high impedance
LTENA hold after LTCLK HIGH
LTCLK HIGH to LTENA HIGH
LTCLK HIGH to LTDATA output valid
for bit 0 (see Fig.21)
for first bit in the second 8-bit unit
LTCNT0/1 set-up before LTENA HIGH
LTCNT0/1 hold after LTENA HIGH
LTDATA set-up before LTCLK HIGH
LTDATA input hold after LTCLK HIGH
LTDATA output hold after LTCLK HIGH
LTENA hold after LTCLK HIGH
190 ns
190 ns
190 ns
190 ns
0 ns
380 ns
50 ns
355 ns
190 ns
t
D3
t
D4
t
H4
t
D5
t
D6
355 ns
520 ns
190 ns
190 ns
190 ns
30 ns
145 ns
355 ns
t
S1
t
H1
t
S2
t
H2
t
H3
t
H4
Fig.22 Microcontroller interface timing.
handbook, full pagewidth
MLB135
tH1
tS1
tel
tD1
tCL
tCH
tD5
tS2
tH2
tH3
tD6
tD3
tD2
LTENA
LTCLK
LTCDATA
input
LTCDATA
output
tD4
tH4
hiZ
hiZ
LTCNT0
LTCNT1
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