MSP58C20_16 [TI]
AUDIO-BAND CONVERTER;
| 型号： | MSP58C20_16 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | AUDIO-BAND CONVERTER |
| 文件： | 总17页 (文件大小：309K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
DW PACKAGE
(TOP VIEW)
Analog Portion of ADC and DAC for
Audio-Band Signal-Processing
Applications
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
NC
NC
SUB
NC
5-V Supply Voltage
V
AOP
AOM
DIGS
DIGL
ADCLK
Oversampling Second-Order Sigma-Delta
Modulator
SS
AIP
AIM
1.024-MHz Master Clock Frequency
PWAD
PWDA
ADOUT
NC
On-Chip Continuous-Time Antialiasing and
Smoothing Filters
V
DD
NC
NC
High-Performance Fully Differential and
Symmetrical Analog Data Paths
NC
Internal Reference Voltage and
Common-Mode Bias Voltage Generation
NC – No internal connection
Very Low Power Consumption Mode
description
The MSP58C20 is the analog portion of an audio-band sigma-delta analog-to-digital and digital-to-analog
converter and is a companion part to the MSP58C80. The MSP58C20 is designed to operate only with the
MSP58C80, which contains the digital portion of the audio-band converter. The circuit consists of three main
blocks: the analog-to-digital converter (ADC), the digital-to-analog converter (DAC), and internal reference and
bias voltages.
The analog-to-digital conversion chain consists of a continuous-time antialiasing stage, an analog oversampled
modulator, and the modulator bias voltage. The antialiasing stage is a second-order low-pass filter with a cutoff
frequency of typically 190 kHz. The modulator is a sigma-delta feedback loop, which oversamples the signal
at 1.024 MHz and provides second-order noise shaping. It performs the conversion of the differential analog
input signal to a pulse-density-modulated single-bit digital output (ADOUT). When a maximum positive
differential input voltage (i.e., a maximum positive voltage difference of AIP – AIM) is applied at the AIP and AIM
inputs, the resulting code at the ADOUT output is all ones.
The digital-to-analog conversion chain consists of a fast DAC, an analog low-pass filter, and the filter’s bias
voltage. The two input bits (DIGS and DIGL), sampled at 0.512 MHz from a digital modulator on the MSP58C80,
are the inputs of the DAC conversion chain. Based on the values for DIGS (the sign bit) and DIGL (the level bit),
the following table shows the DAC voltage steps that are produced.
DIGS
DIGL
DAC VOLTAGE STEPS
L
L
L
H
L
–1 × V
–2 × V
+1 × V
+2 × V
ref
ref
ref
ref
H
H
H
When DIGS = L, the AOM analog output has a more positive voltage than AOP. When DIGL = H, the absolute
value of the voltage difference between AOP and AOM is greater than when DIGL = L. A band-gap voltage
source is used to produce the DAC and ADC reference voltages. These two references are different to avoid
crosstalk between the two converters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 1996, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
functional block diagram
ADCLK
PWAD
Analog
Sigma-Delta 2
Modulator
AIP
1.024 MHz
Antialiasing
1.024 MHz
ADOUT
Filter
AIM
ADC Band-Gap
Reference Voltage
Source
V
SS
Bias
V
DD
DAC Band-Gap
Reference
Voltage Source
AOP
AOM
DIGS
DIGL
Smoothing
Filter
Low-Pass
Filter
512 kHz
MSP58C20
V
SUB
PWDA
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
Terminal Functions
TERMINAL
A/D
I/O
DESCRIPTION
NAME
NO.
14
8
ADCLK
ADOUT
AIM
D
D
A
I
O
I
ADCLK is a 1.024-MHz clock input.
ADOUT is the 1-bit output of the ADC modulator and is sampled at 1.024 MHz.
5
AIM is a negative differential input for the ADC. AIP and AIM together form a balanced differential input.
The biasing of this terminal is fixed through resistors by the internal common-mode voltage source. This
terminal can be ac coupled or dc coupled. If the terminal is dc coupled, external common-mode bias
should satisfy recommended operating conditions.
AIP
4
A
I
AIP is a positive differential input for the ADC. AIP and AIM together form a balanced differential input.
The biasing of this terminal is fixed through resistors by the internal common-mode voltage source. This
terminal can be ac coupled or dc coupled. If the terminal is dc coupled, external common-mode bias
should satisfy recommended operating conditions.
AOM
AOP
17
18
A
A
O
O
AOM is a negative differential DAC output. AOP and AOM together form a balanced differential output.
The common-mode voltage at this terminal is fixed by the internal common-mode circuitry.
AOP is a positive differential DAC output. AOP and AOM together form a balanced differential output.
The common-mode voltage at this terminal is fixed by the internal common-mode circuitry.
DIGL
15
16
6
D
D
D
I
I
I
DIGL is the input level bit of the DAC and is sampled at 0.512 MHz.
DIGS is the input sign bit of the DAC and is sampled at 0.512 MHz.
DIGS
PWAD
When PWAD is high, it puts the ADC part of the circuit into a power-down mode. When both PWAD and
PWDA are high, the MSP58C20 is in a stable low-power-consumption state.
PWDA
7
1
D
I
When PWDA is high, it puts the DAC part of the circuit in a power-down mode. When both PWAD and
PWDA are high, the MSP58C20 is in a stable low-power-consumption state.
V
SUB
n/a
n/a
V
andV mustbeconnectedtogethertominimizesubstratecurrentsduringpowerup,powerdown,
SS
SUB
and normal operation.
V
V
13
3
n/a
n/a
n/a
n/a
V
is the 5-V power supply.
DD
DD
V
V
is ground. The internal band-gap voltage and the common-mode bias voltages are referenced to
SS
SS
SS
.
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V
DD
Input voltage range, V (any digital or analog input, see Note 1) . . . . . . . . . . . . . . . . . . –0.3 V to V
+ 0.3 V
I
DD
V
, V voltage range, relative to each other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 mV to 30 mV
SUB SS
Operating free-air temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
A
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to V
SS
unless otherwise noted.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
recommended operating conditions
MIN NOM
MAX
UNIT
Supply voltage, V
DD
(see Note 1)
4.75
2
5
5.25
V
V
V
V
High-level input voltage, digital inputs, V (see Note 1)
IH
Low-level input voltage, digital inputs, V (see Note 1)
IL
0.8
3
Maximum differential input voltage between AIP and AIM (ac or dc peak-to-peak voltage), V
–3
ID
0.45 ×
0.5 × 0.55 ×
Common-mode input voltage at AIP and AIM, V (see Note 1)
IC
V
V
DD
V
V
DD
DD
1.024
Input clock frequency, ADCLK
MHz
kΩ
Resistive load between AOP and AOM
15
Capacitive load at AOP and AOM (at each output versus V
)
50
70
pF
SS
Operating free-air temperature, T
0
°C
A
NOTE 1: All voltage values are with respect to V
SS
unless otherwise noted.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature, ADCLK input frequency = 1.024 MHz, PWDA = L and PWAD = L (power-up mode)
(unless otherwise noted)
supply current characteristics
PARAMETER
TEST CONDITIONS
PWAD =H, PWDA = H,
Digital inputs = V or V
MIN
TYP
MAX
50
UNIT
µA
,
SS
DD
Digital output = no load
I
Supply current
DD
PWAD = L, PWDA = L
6.5
9
16
mA
analog input characteristics
PARAMETER
TEST CONDITIONS
dc or ac voltage
See Note 2
MIN
TYP
MAX
UNIT
V
Transmit dynamic range, maximum differential
input voltage (between AIP and AIM)
±2.22 ±2.36
±2.5
V
V
Transmit differential input offset voltage
–150
150
mV
V
IO
0.4 ×
0.5 ×
0.6 ×
Internal common-mode voltage at AIP and AIM
IC
V
DD
V
DD
V
DD
Between AIP and internal common-mode
voltage source (AIM = V /2)
DD
AIP
15
25
35
z
Input impedance
Input capacitance
kΩ
i
Between AIM and internal common-mode
voltage source (AIP = V /2)
DD
AIM
AIP
AIM
15
25
35
50
50
Measured at 5 MHz between AIP and V
SS
(AIM = V
DD
/2)
pF
Measured at 5 MHz between AIM and V
SS
(AIP = V
/2)
DD
NOTE 2: Calculated by linear regression based on five dc measurements between –1 V and 1 V
digital output characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
TYP
MAX
UNIT
V
V
V
Digital high-level output voltage versus V
I
= 300 µA
2.4
OH
SS
OH
OL
Digital low-level output voltage versus V
SS
I
= 1 mA
0.4
V
OL
analog output characteristics
PARAMETER
TEST CONDITIONS
dc measurement
MIN
±2.82
–150
0.4 ×
MAX
UNIT
V
V
V
Differential output voltage, dynamic range, AOP to AOM Balanced loads,
±3 ±3.18
OD
Differential output offset voltage
dc measurement
150
mV
OO
0.5 ×
0.6 ×
V
OC
Common-mode output voltage at AOP and AOM
V
V
DD
V
DD
V
DD
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature, ADCLK input frequency = 1.024 MHz, PWDA = L and PWAD = L (power-up mode)
(unless otherwise noted) (continued)
†
ADC transmit characteristics
PARAMETER
TEST CONDITIONS
= 25°C,
MIN TYP
MAX
UNIT
Transmit absolute gain
tolerance
V
= 5 V,
T
A
DD
Input = 1-kHz sine wave at –13 dBrl
±0.5
dB
Input = 1-kHz sine wave,
Gain reference level = gain
measured at input level of
Input level = –1 dBrl to –43 dBrl
±0.25
±0.5
±1
Transmit gain versus
input level
Input level = –43 dBrl to –53 dBrl
Input level = –53 dBrl to –58 dBrl
dB
–13 dBrl,
See Note 3
Transmit gain versus
supply voltage
V
DD
= 4.75 V to 5.25 V,
Input = 1 kHz at –13 dBrl
±0.15
dB
Transmit idle channel
in-band noise
Psophometrically-weighted output noise,
Transmit channel idle
–76
dBrlp
f = 50 Hz
f = 300 Hz
f = 3.4 kHz
f = 4 kHz
f = 7 kHz
f = 12 kHz
f = 20 kHz
–80
–82
–82
–80
–72
–65
–64
Transmit idle channel
single-frequency noise
spectrum (see Note 4)
T = 25°C,
A
dBrl
FFT rectangular window bandwidth = 125 Hz,
Transmit channel idle, See Figure 5
Transmit single-
frequency distortion
Input = one frequency in 0.7-kHz to 1.1-kHz band at –4 dBrl,
Measured first two harmonics
–50
–40
dB
Input = two frequencies in 0.3-kHz to 3.4-kHz band,
Input levels = –7 dBrl and –24 dBrl,
Measured second and third intermodulation products
Transmit intermodulation
distortion (see Note 4)
dBrl
V
= 5.25 V,
DD
= 25°C,
Input level = –70 dBrl
Input level = –20 dBrl
Input level = –1 dBrl
–13
50
T
A
Transmit-signal-to-total-
noise-plus-distortion ratio
(see Note 5)
Input = 1-kHz sine wave,
Measured psophometrically-
weighted total noise plus
dB
dB
50
distortion,
See Figure 6
Transmit gain variations
versus input frequency
(see Notes 4 and 6)
f = 0.1 kHz to 4 kHz,
See Note 7
Input level = –13 dBrl
±0.6
Transmit power supply
rejection
30
dB
AIP
–10
–10
10
10
Voltage applied to terminal is between V
PWDA = H (power-down mode)
and V ,
DD
SS
I
Leakage current
µA
lkg
AIM
Receive input = one frequency in 0.3-kHz to 3.4-kHz band at –3 dBrl,
Crosstalk measured at transmit digital output,
Transmit channel idle
Receive-to-transmit
crosstalk
–70
dB
†
This table contains specifications in which the power levels are expressed in dBrl; dBrl stands for dB above reference level. 0 dBrl is the ADC
theoretical overload point. This overload point corresponds to a sine wave at the input of the modulator with peak amplitude equal to 2.25 V dBrlp
is a psophometrically-weighted value being compared against a psophometrically-weighted reference.
NOTES: 3. Input satisfies CCITT G.714 15.3, Method 2.
4. This parameter is characterized but not tested.
5. Input satisfies CCITT G.714 14.3, Method 2.
6. Gain is relative to gain at 1 kHz.
7. Thepower-supplyrejectionmeasurementismadewitha50-mVrms,0-to20-kHzsignalappliedtoV
idle.
andwiththetransmitchannel
DD
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature, ADCLK input frequency = 1.024 MHz, PWDA = L and PWAD = L (power-up mode)
(unless otherwise noted) (continued)
†
DAC receive characteristics
PARAMETER
TEST CONDITIONS
= 25°C,
MIN
TYP MAX UNIT
V
DD
= 5 V,
T
A
Receive gain tolerance
±0.5
dB
Input = 1-kHz sine wave at –28 dBrl
Input = 1-kHz sine wave,
Gain reference level = gain
measured at input level of –28dBrl,
See Note 8
Input level = –1 dBrl to –43 dBrl
Input level = –43 dBrl to –53 dBrl
Input level = –53 dBrl to –58 dBrl
±0.25
±0.5
±1
Receive gain versus input level
dB
Receive gain versus
supply voltage
V
= 4.75 V to 5.25 V,
DD
±0.15
dB
Digital input = 1-kHz sine wave at –28 dBrl
Receive idle channel in-band
noise
Receive channel idle,
Psophometrically-weighted output noise
–75
dBrlp
f = 100 Hz
f = 3 kHz
–82
–82
–64
–64
T
= 25°C,
A
Receive idle channel
single-frequency noise
spectrum (see Note 4)
Receive channel idle,
Measurement bandwidth = 125 Hz,
See Figure 6
dBrl
f = 10 kHz
f = 100 kHz
Receive single-frequency
distortion
Input = one frequency in 0.7-kHz to 1.1-kHz band at –6 dBrl,
Measured first two harmonics
–50
–40
dB
Receive intermodulation
distortion (see Note 4)
Input = two frequencies in 0.3-kHz to 3.4-kHz band,
Input levels = –7 dBrl and –24 dBrl,
dBrl
Measured second and third intermodulation products
V
= 5.25 V,
T = 25°C,
A
DD
Input level = –70 dBrl
Input level = –20 dBrl
Input level = –1 dBrl
0
Input = 1-kHz sine wave,
Measured psophometrically-
weighted total noise plus
Receive signal-to-total-noise-
plus-distortion ratio
(see Note 9)
50
dB
50
‡
distortion,
See Figure 7
f = 156 Hz to 4 kHz
f = 4.6875 kHz
f = 6.25 kHz
0.6
–0.4
–1.4
–2.9
–4.8
–6.8
–8.7
–12.2
–0.6
–0.7
–1.75
–3.35
–5.25
–7.25
–9.2
Receive gain variations versus
input sine wave frequency
(see Note 6)
V
DD
= 4.75 V,
T = 25°C,
A
f = 7.8125 kHz
f = 9.375 kHz
f = 10.9375 kHz
f = 12.5 kHz
Input level = –13 dBrl,
See Figure 9
dB
dB
f = 15.625 kHz
–12.8
30
Receive power supply rejection See Note 10
†
This table contains specifications in which the power levels are expressed in dBrl; dBrl stands for dB above reference level. 0 dBrl is the DAC
overloadpoint.Overloadlevelsofthedigitalmodulator(seeparametermeasurementinformation)are32767and–32767peakvalues.The0-dBrl
level is related to maximum differential output voltage, which is typically 2.25 V.
The algebraic convention, in which the less positive (more negative) limit is designated as minimum, is used in this data sheet for receive gain
variations versus input sine-wave frequency.
‡
NOTES: 4. This parameter is characterized but not tested.
6. Gain is relative to gain at 1 kHz.
8. Input satisfies CCITT G.714 15.4 Method 2.
9. Input satisfies CCITT G.714 14.4 Method 2.
10. The power supply rejection measurement is made with a 50-mVrms, 0-kHz to 20-kHz signal applied to V
channel idle.
and with the receive
DD
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature, ADCLK input frequency = 1.024 MHz, PWDA = L and PWAD = L (power-up mode)
(unless otherwise noted) (continued)
DAC receive characteristics (continued)
PARAMETER
TEST CONDITIONS
MIN
–10
–10
TYP MAX UNIT
AOP
AOM
10
µA
10
I
Leakage current
lkg
Output impedance,
differential, between
AOP and AOM
30
kΩ
(see Note 4)
Transmit input = one frequency in 0.3-kHz to 3.4-kHz band at –3 dBrl,
Receive channel idle,
Crosstalk measured at receive analog output
Transmit-to-receive
crosstalk
–70
dB
NOTE 4. This parameter is characterized but not tested.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
Transmit setup time at power up
(PWAD transition from H to L)
ADCLK input frequency = 1.024 MHz,
See Note 11
t
t
20
µs
su1
Receive setup time at power up
(PWDA transition from H to L)
ADCLK input frequency = 1.024 MHz,
See Note 12
20
1
µs
su2
t
t
t
t
t
t
t
Receive setup time, DIGS or DIGL setup before ADCLK↑
Receive hold time, DIGS or DIGL hold after ADCLK↑
Cycle time, ADCLK
See Figure 4
See Figure 4
50
50
ns
ns
µs
ns
ns
ns
ns
su3
h
c
Pulse duration, ADCLK high
470
470
w1
w2
f
Pulse duration, ADCLK low
Fall time, ADCLK
20
20
Rise time, ADCLK
r
NOTES: 11. After the setup time, the transmit channel displays normal operating characteristics.
12. After the setup time, the receive channel displays normal operating characteristics.
switching characteristic over recommended ranges of supply voltage and operating free-air
temperature
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
t
a
Transmit access time, ADOUT after ADCLK↑ (see Note 4)
See Figure 3
100
ns
NOTE 4. This parameter is characterized but not tested.
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
PARAMETER MEASUREMENT INFORMATION
The receive characteristics in the electrical characteristics table are measured by activating the MSP58C20 receive
path through a digital modulator. This modulator consists of two functional blocks (see Figure 1 and Figure 2)
connected in series. The output of the decoder (see Figure 2) is shown in Table 1.
3
/
3
/
–1
Z
Em
3 LSBs
+
BITS (16–1)
/
/
/
Di
16
16
13 MSBs
Figure 1. 16- to 13-Bit Modulator at 512-kHz Sampling Rate
512 kHz
Dx
Ux
DIGS
DIGL
13
/
16
/
11
/
12
/
4 MSBs
/
Vx
1
/
+
+
Di
32
Decoder
512 kHz
12
Rx
Sx
16
12
/
3
/
–1
+
64
Dx
Z
16
/
16
/
3
/
–1
2048
+
Z
Figure 2. Sigma-Delta-2 Modulator at 512-kHz Sampling Rate
Table 1. Dx Decoder
DECODER INPUT
DECODER OUTPUT
Vx (11) Vx (10) Vx (9) Vx (8) Dx (2) Dx (1) Dx (0) DIGS
DIGL
H
0
0
0
0
1
1
1
1
1
0
0
0
1
1
1
0
X
1
0
0
1
1
0
X
X
X
1
0
1
0
X
X
H
H
H
H
L
H
H
H
H
L
L
L
L
H
H
L
L
L
L
L
H
L
H
L
L
H
H
H
H
L
L
H
H
H
H
L
H
L
H
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
PARAMETER MEASUREMENT INFORMATION
ADCLK
t
a
ADOUT
Figure 3. Transmit Access Timing Waveforms
ADCLK
t
su3
t
h
DIGS
or
DIGL
Figure 4. Receive Setup and Hold Time Waveforms
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
TYPICAL CHARACTERISTICS
†
TRANSMIT IDLE CHANNEL
RECEIVE IDLE CHANNEL
SINGLE-FREQUENCY NOISE SPECTRUM
SINGLE-FREQUENCY NOISE SPECTRUM
–60
–65
–50
–55
–60
(20,–64)
V
T
A
= 4.75 V to 5.25 V
V
= 4.75 V to 5.25 V
(12,–65)
DD
= 25°C
DD
T = 25°C
A
(100,–64)
(10,–64)
–70
–65
–70
–75
–80
–85
–90
(7,–72)
–75 (0.05, –80)
–80
(4,–80)
(3.4,–82)
(0.3,–82)
–85
(3,–82)
(0.01,–82)
–90
–95
–95
–100
–100
0
5
10
15
20
0
20
40
60
80
100
Output Signal Frequency – kHz
Output Signal Frequency – kHz
†
This parameter is characterized but not tested.
Figure 5
Figure 6
RECEIVE SIGNAL-TO-TOTAL-NOISE-
PLUS-DISTORTION RATIO
vs
DIGITAL INPUT SIGNAL MAGNITUDE
70
60
50
40
30
20
10
0
G
V
= 5.25 V
= 25°C
H
DD
T
A
I
SET OF
See Note A
LOCATION
POINTS
F
A
B
C
D
E
F
G
H
I
(–70,9)
(–58, 23)
(–53, 28)
(–43, 38)
(–35, 46)
(–28, 53)
(–13, 67)
(–5, 69)
E
(–1,50)
(–20,50)
D
C
B
A
(–1, 64)
(–70,0)
–60
–20
0
–80
–40
Digital Input Signal Magnitude – dBrl
NOTE A: The three points on the dashed line are minimum
qualification standards, which every MSP58C20 must
pass. The curve shows empirical data from
a
representative lot.
Figure 7
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
TYPICAL CHARACTERISTICS
TRANSMIT SIGNAL-TO-TOTAL-NOISE-
PLUS-DISTORTION RATIO
vs
ANALOG INPUT SIGNAL MAGNITUDE
70
60
50
40
30
20
10
0
G
V
= 5.25 V
H I
DD
= 25°C
T
A
SET OF
POINTS
LOCATION
See Note A
F
A
B
C
D
E
F
G
H
I
(–70,8)
(–58, 20)
(–53, 24)
(–43, 32)
(–35, 40)
(–28, 48)
(–13, 65)
(–5, 69)
(–1,50)
E
(–20,50)
D
C
B
A
–10
–20
(–1, 69)
(–70, –13)
–80 –70 –60 –50 –40 –30 –20 –10
0
Analog Input Signal Magnitude – dBrl
NOTE A. The three points on the dashed line are minimum
qualification standards, which every MSP58C20 must
pass. The curve shows empirical data from
representative lot.
a
Figure 8
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
MAXIMUM AND MINIMUM CHARACTERISTICS
RECEIVE GAIN VARIATIONS
vs
INPUT SINE-WAVE FREQUENCY
4
2
V
T
= 4.75 V
DD
= 25°C
A
A
B
SET OF
POINTS
C
MIN
MAX
0
–2
D
Maximum
A
B
C
D
E
F
G
H
I
(0.156, –0.6)
(4, –0.6)
(0.156, 0.6)
(4, 0.6)
E
Minimum
(4.6875, –0.7)
(6.25, –1.75)
(7.8125, –3.35)
(9.375, –5.25)
(4.6875, –0.4)
(6.25, –1.4)
(7.8125, –2.9)
(9.375, –4.8)
–4
F
–6
G
H
–8
(10.9375, –7.25) (10.9375, –6.8)
–10
–12
–14
(12.5, –9.2)
(12.5, –8.7)
I
(15.625, –12.8)
(15.625, –12.2)
0
2
4
6
8
10
12
14
16 18
Input Sine-Wave Frequency – kHz
Figure 9
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
MECHANICAL DATA
DW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
16 PIN SHOWN
PINS **
0.050 (1,27)
16
20
24
28
DIM
0.020 (0,51)
0.014 (0,35)
0.010 (0,25)
M
0.410
0.510
0.610
0.710
A MAX
(10,41) (12,95) (15,49) (18,03)
16
9
0.400
0.500
0.600
0.700
A MIN
(10,16) (12,70) (15,24) (17,78)
0.419 (10,65)
0.400 (10,15)
0.010 (0,25) NOM
0.299 (7,59)
0.293 (7,45)
Gage Plane
0.010 (0,25)
1
8
0°–8°
0.050 (1,27)
0.016 (0,40)
A
Seating Plane
0.004 (0,10)
0.012 (0,30)
0.004 (0,10)
0.104 (2,65) MAX
4040000/B 03/95
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0.006 (0,15).
D. Falls within JEDEC MS-013
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
30-Mar-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
SOIC
SOIC
SOIC
SOIC
SOIC
SOIC
Drawing
MSP58C20DW
MSP58C20DWR
MSP58C20S1DW
MSP58C20S2DW
SP58C20DW
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
OBSOLETE
DW
20
20
20
20
20
20
TBD
TBD
TBD
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
DW
DW
DW
DW
SP58C20DWR
DW
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third-party products or services
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for
such altered documentation.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
product or service voids all express and any implied warranties for the associated TI product or service and
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Following are URLs where you can obtain information on other Texas Instruments products and application
solutions:
Products
Applications
Audio
Amplifiers
amplifier.ti.com
www.ti.com/audio
Data Converters
dataconverter.ti.com
Automotive
www.ti.com/automotive
DSP
dsp.ti.com
Broadband
Digital Control
Military
www.ti.com/broadband
www.ti.com/digitalcontrol
www.ti.com/military
Interface
Logic
interface.ti.com
logic.ti.com
Power Mgmt
Microcontrollers
power.ti.com
Optical Networking
Security
www.ti.com/opticalnetwork
www.ti.com/security
www.ti.com/telephony
www.ti.com/video
microcontroller.ti.com
Telephony
Video & Imaging
Wireless
www.ti.com/wireless
Mailing Address:
Texas Instruments
Post Office Box 655303 Dallas, Texas 75265
Copyright 2005, Texas Instruments Incorporated
相关型号：
©2020 ICPDF网 联系我们和版权申明