sta015t STMicroelectronics, sta015t Datasheet - Page 7

• Manufacturer Part Number: sta015t
• Description: Mpeg 2.5 Layer Iii Audio Decoder With Adpcm Capability
• Manufacturer: STMicroelectronics

Figure 3. Test Circuit (refer to SO28 package)
Figure 4. Test Load Circuit
2. FUNCTIONAL DESCRIPTION
2.1 - Clock Signal
The STA015 input clock is derivated from an ex-
ternal source or from a industry standard crystal
oscillator, generating input frequencies of 10,
14.31818 or 14.7456 MHz.
CMOS compatibility
The XTI pad low and high levels are CMOS compatible; XTI pad noise margin is better than typical
CMOS pads.
TTL compatibility
The XTI pad low level is compatible with TTL while the high level is not compatible (for example if V
3V TTL min high level = 2.0V while XTI min high level = 2.2V)
Symbol
V
V
OUTPUT
IH
IL
Low Level Input Voltage
High Level Input Voltage
C
L
4.7 F
OUT_CLK/DATA_REQ
V
V
DD
SS
Parameter
I
I
OH
OL
PV
PV
V
V
V
V
DD
SS
DD
DD
DD
DD
100nF
100nF
100nF
100nF
4.7 F
V
V
V
V
SS
SS
SS
SS
V
DD
D98AU967
28
1
2
14
13
16
15
23
22
PV
17
V
DD
REF
100nF
PV
18
SS
Test Condition
26
RESET
Test Load
Other frequencies may be supported upon re-
quest to STMicroelectronics. Each frequency is
supported by downloading a specific configura-
tion file, provided by STM
XTI is an input Pad with specific levels.
SDA
Other Outputs
Output
24
D00AU1143
TESTEN
10
11
12
25
27
21
20
19
3
4
9
5
6
7
8
SDA
SCL
SDO
SCKT
LRCKT
OCLK
SDI
SCKR
BIT_EN
SDI_ADC
SCR_INT
LRCK_ADC
XTI
XTO
STA015-STA015B-STA015T
470pF
100 A
V
1mA
I
Min.
DD
OL
-0.8
PV
100 A
SS
10K
I
1K
Typ.
4.7nF
OH
100pF
100pF
V
Max.
DD
C
L
-1.8
V
3.6V
1.5V
Unit
REF
V
V
DD
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