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NE5241D PDF даташит

Спецификация NE5241D изготовлена ​​​​«Philips» и имеет функцию, называемую «Dolby ADM digital audio decoder».

Детали детали

Номер произв NE5241D
Описание Dolby ADM digital audio decoder
Производители Philips
логотип Philips логотип 

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NE5241D Даташит, Описание, Даташиты
Philips Semiconductors
Dolby ADM digital audio decoder
Product specification
NE5241
DESCRIPTION
The NE5241 is a complete stereo digital to audio converter for the
Dolby ADM digital audio system, which allows CD quality stereo
audio to be delivered with data rates on the order of 400 to 600kb/s.
The NE5241 is intended for use in high quality consumer digital
audio equipment for the reproduction of broadcast (or pre-recorded)
digital audio. The IC contains channel de-multiplexing data input
latches, control signal filter drivers and buffers, variable gain
integrators, and variable de-emphasis filters. Precision, temperature
compensated voltage reference circuitry assures accurate
performance over temperature. The IC is implemented in a bipolar
process to achieve low noise, low distortion, and wide dynamic
range. The NE5241 is an improved version of the NE5240, which
has been discontinued.
Note:
The NE5241 is available only to licensees of Dolby Laboratories Licensing Corporation,
from who licensing and applications information must be obtained. Dolby is a registered
trademark of Dolby Laboratories Licensing Corporation, San Francisco, California.
APPLICATIONS
High quality digital audio transmission systems
Pre-recorded digital audio
Satellite delivered digital audio
Cable TV delivered digital audio
Microwave delivered digital audio
Terrestrial delivered digital audio
Digital audio for advanced television sound
PIN CONFIGURATION
N, D Packages
MULTI OUT 1 1
VCC 2
VARZ 1 3
OUT 1 4
FEEDBACK 1 5
INT IN 1 6
EM FILT IN 1 7
EM FILT OUT 1 8
SS FILT IN 1 9
SS FILT OUT 1 10
VDD 11
SS 12
AD 13
EM 14
28 MULTI OUT 2
27 AGND
26 VARZ 2
25 OUT 2
24 FEEDBACK 2
23 INT IN 2
22 EM FILT IN 2
21 EM FILT OUT 2
20 SS FILT IN 2
19 SS FILT OUT 2
18 DGND
17 REX
16 VREF
15 CK
TOP VIEW
Figure 1. Pin Configuration
SR01021
FEATURES
Wide dynamic range: >95dB
Low distortion: <0.1% @ 1kHz, 0dB
TTL, CMOS compatible logic inputs
Wide bandwidth: DC to > 20kHz
Complete decoder implementation in one IChip
ORDERING INFORMATION
DESCRIPTION
28-Pin Plastic Dual In-Line Package (DIP)
28-Pin Small Outline Large (SOL) Package
TEMPERATURE RANGE
0 to +70°C
0 to +70°C
ORDER CODE
NE5241N
NE5241D
DWG #
SOT117-2
SOT136-1
ABSOLUTE MAXIMUM RATINGS
SYMBOL
VCC
VDD
TA
TSTG
TJ
TSOLD
θJA
PARAMETER
Analog supply voltage
Logic supply voltage
Operating ambient temperature range
Storage temperature range
Junction temperature
Lead temperature (soldering 60 sec)
Thermal impedance
N package
D package
RATING
+15
+7
0 to +70
–65 to +150
–65 to +150
+300
48
70
UNIT
V
V
°C
°C
°C
°C
°C/W
°C/W
March 19, 1992
1 853-1602 06126









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NE5241D Даташит, Описание, Даташиты
Philips Semiconductors
Dolby ADM digital audio decoder
PIN DESCRIPTIONS
PIN #
SYMBOL
1 MULTI OUT 1
2 VCC
3 VARZ 1
4 OUT 1
5 FEEDBACK 1
6 INT IN 1
7 EM FILTER IN 1
8 EM FILTER OUT 1
9 SS FILTER IN 1
10 SS FILTER OUT 1
11 VDD
12 SS
13 AD
14 EM
15 CK
16 VREF
17 REX
18 DGND
19 SS FILTER OUT 2
20 SS FILTER IN 2
21 EM FILTER OUT 2
22 EM FILTER IN 2
23 INT IN 2
24 FEEDBACK 2
25 OUT 2
26 VARZ 2
27 AGND
28 MULT OUT 2
DESCRIPTION
Multiplier output, channel 1
Analog supply voltage
Variable impedance, channel 1
Main output, channel 1
Summing amp input, channel 1
Integrator amp input, channel 1
Emphasis filter buffer input, channel 1
Emphasis filter driver output, channel 1
Step-size filter buffer input, channel 1
Step-size filter driver output, channel 1
Logic supply voltage
Step-size data input
Audio data input
Emphasis data input
Data clock input
Reference voltage bypass
Variable impedance reference resistor
Digital ground
Step-size filter driver output, channel 2
Step-size filter buffer input, channel 2
Emphasis filter driver output, channel 2
Emphasis filter buffer input, channel 2
Integrator amp input, channel 2
Summing amp input, channel 2
Main output, channel 2
Variable impedance, channel 2
Analog ground
Multiplier output, channel 2
Product specification
NE5241
March 19, 1992
2









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NE5241D Даташит, Описание, Даташиты
Philips Semiconductors
Dolby ADM digital audio decoder
Product specification
NE5241
DC ELECTRICAL CHARACTERISTICS
All specifications are at TA=25°C, VDD=5V, VCC=12V. Test circuit Figure 1.
SYMBOL
PARAMETER
TEST CONDITIONS
VCC Analog supply voltage
VDD Digital supply voltage
ICC Analog supply current
IDD Digital supply current
VIH HIGH level input voltage
VIL LOW level input voltage
IIH HIGH level input current
IIL LOW level input current
tS Data setup time
tH Data hold time
IB Control signal buffer bias current
Integrating amp gain
Pins SS, AD, EM
Pins SS, AD, EM = 2V
Pins SS, AD, EM = 0.8V
LIMITS
Min Typ Max
10.8 12 13.2
4.7 5 5.3
25 40
12 20
2.0
0.8
1 10
15
150
150
10 30
22
UNIT
V
V
mA
mA
V
V
µA
µA
ns
ns
nA
dB
AC ELECTRICAL CHARACTERISTICS
All specifications are at TA=25°C, VDD=5V, VCC=12V, Audio data rate = 204kHz. 0dB is defined as 0.775VRMS. Test circuit Figure 4.
SYMBOL
PARAMETER
Output voltage (reference level)1
TEST CONDITIONS
LIMITS
Min Typ Max
–6 –4.5 –2.5
UNIT
dBu
Channel balance (reference level)1
Channel balance change2
20% < SS < 80%
0.2 1.2
0.2 1.0
dB
dB
Channel balance change2
Step-size tracking error3
Step-size tracking error3
10% < SS < 90%
20% < SS < 80%
10% < SS < 90%
0.4 1.5
0.5 3.0
1.0 4.0
dB
dB
dB
Headroom4
Noise5
20Hz – 20kHz
13
–80 –78
dBu
Noise5
Mute noise6
CCIR/ARM
CCIR/ARM
–89 –85
–93 –88
dBu
dBu
THD
THD
Dynamic range7
Total harmonic distortion1
Total harmonic distortion8
0dB (ref level)
+13dB (max level)
98
0.8 0.2
0.13 0.5
%
%
Variable de-emph calibration error9
Freq. response error
Freq. response error
Freq. response error
Dynamic offset, emphasis10
Dynamic offset, step-size11
8kHz EM = 40%
2kHz EM = 10%
12kHz EM = 60%
15kHz EM = 70%
AC measurement
AC measurement
–1 0.2
1
–1.8 0.2
1.5
–2.3 0.25 2.3
–2.5 0.5
2.5
–43 –30
–39 –24
dB
dB
dB
dB
dB
dB
Channel separation
1kHz
75 dB
NOTES: Test patterns referred to are produced by the Dolby Cat. No. 346 ADM Test Data Generator.
1. Dolby ADM reference level, Dolby test pattern 00. This is 10dB below the nominal 100% modulation level.
2. The channel balance may change over the operating range. This specification is the channel balance change from the intial channel
balance which was measured at reference level.
3. The gain should change by 36.12dB as the step-size data is changed from 20% to 80% duty cycle, or 48.16dB as the data changes from
10% to 90%. The tracking error is the amount by which the gain change deviates from the desired value.
4. This is headroom over Dolby ADM reference level.
5. Idling data patterns, Dolby test pattern 02 with respect to test 01.
6. Muted data patterns, Dolby test pattern 04.
7. Difference between output voltage plus headroom, and CCIR/ARM weighted mute noise level.
8. Test level is 13dB over Dolby ADM reference level. Dolby test pattern 08.
9. Measured at 8.00kHz, with emphasis data at 40% duty cycle. This may be trimmed to zero by adjusting the resistor at Pin 17.
10. Dolby test pattern 48 relative to test 00. Duty cycle alternates from 10 to 70%.
11. Dolby test pattern 49 relative to test 00. Duty cycle alternates from 10 to 70%.
March 19, 1992
3










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