TEXAS INSTRUMENTS PCM4204 Technical data

SBAS327A − JUNE 2004 − REVISED SEPTEMBER 2004

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

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FEATURES

D Four High-Performance Delta-Sigma

Analog-to-Digital Converters

− 24-Bit Linear PCM or 1-Bit Direct Stream
Digital (DSD) Output Data

− Supports PCM Output Sampling Rates up
to 216kHz

− Supports 64fS and 128fS DSD Output Data
Rates

D Dynamic Performance: PCM Output

− Dynamic Range: 118dB

− THD+N: −105dB

D Dynamic Performance: DSD Output

− Dynamic Range: 115dB

− THD+N: −103dB

D Audio Serial Port

− 24-Bit Linear PCM Output Data

− Master or Slave Mode Operation

− Supports Left-Justified, Right-Justified,
I2S, and TDM Data Formats

D DSD Data Port

− Supports DSD Output or Input for All Four
Channels Simultaneously

− Input Mode Provides 1-Bit DSD to 24-Bit
PCM Data Format Conversion

D Additional PCM Output Features

− Linear-Phase Digital Decimation Filter

− Digital High-Pass Filter for DC Removal

− Clipping Flag Output for Each Channel

D Power Supplies: +5V Analog and +3.3V Digital
D Power Dissipation:

− fS = 48kHz: 600mW typical

− fS = 96kHz: 640mW typical

− fS = 192kHz: 615mW typical

D Power-Down Mode
D Available in a Thermally-Enhanced HTQFP-64

Package

APPLICATIONS

D Digital Recorders and Mixing Desks
D Digital Audio Effects Processors
D Broadcast Studio Equipment
D Surround Sound Encoders
D High-End A/V Receivers

DESCRIPTION

The PCM4204 is a high-performance, four-channel
analog-to-digital (A/D) converter designed for professional
and broadcast audio applications. The PCM4204
architecture utilizes a 1-bit delta-sigma modulator per
channel incorporating a novel density modulated dither
scheme for improved dynamic performance.

The PCM4204 supports 24-bit linear PCM output data,
with sampling frequencies up to 216kHz. The PCM4204
can also be configured to output either 64x or 128x
oversampled, 1-bit direct stream digital (DSD) data for
each channel. In addition, the PCM4204 supports a DSD
input mode, allowing 1-bit DSD to 24-bit PCM data format
conversion utilizing the on-chip digital decimation filter.
These features make the PCM4204 suitable for a variety
of digital audio recording and processing applications.

The PCM4204 includes a flexible audio serial port inter­face, which supports standard PCM audio data formats, as
well as time division multiplexed (TDM) PCM data formats.
Multiple format support allows the system designer to
choose the interface format that best suits the end applica­tion. Audio data format selection, sampling mode configu­ration, and high-pass filter functions are all programmed
using dedicated control pins.

The PCM4204 operates from a +5V analog power
supply and a +3.3V digital power supply. The digital I/O
pins are compatible with +3.3V logic families. The
PCM4204 is available in a thermally-enhanced HTQFP-64
PowerPAD package.

semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerPAD is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.

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Copyright  2004, Texas Instruments Incorporated

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Supply voltage

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SBAS327A − JUNE 2004 − REVISED SEPTEMBER 2004

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate
precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to
damage because very small parametric changes could cause the device not to meet its published specifications.

ABSOLUTE MAXIMUM RATINGS

over operat i n g f ree-air temperature range unless otherwise noted

VCC1, VCC2 +6.0 V
VDD1, VDD2, VDD3 +3.6 V

Ground voltage differences (any AGND to DGND or BGND) ±0.1 V

FMT0, FMT1, FMT2, S/M, FS0, FS1, FS2,

Digital input voltage

Analog input voltage VIN1−4+, VIN1−4− −0.3 to (VCC + 0.3) V
Input current (any pin except supplies) ±10mA V
Operating temperature range −10 to +70 °C
Storage temperature range, T

(1)

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or
any other conditions beyond those specified is not implied.

STG

SCKI, RST, HPFD, SUB, BCK, LRCK,
DSDCLK, DSD1, DSD2, DSD3, DSD4, TEST

(1)

PCM4204 UNIT

−0.3 to (VDD + 0.3) V

−65 to +150 °C

PACKAGE/ORDERING INFORMATION

For the most current package and ordering information, see the Package Option Addendum located at the end of this
datasheet.

2

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ELECTRICAL CHARACTERISTICS

Unless otherwise noted, all characteristics specified with TA = +25°C, VCC = +5V , VDD = +3.3V , system clock (SCKI) is 512fS for Single Rate
Sampling, 256fS for Dual Rate Sampling, or 128fS for Quad Rate Sampling. The device is operated in Master mode for all dynamic performance
measurements.

PCM4204

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

RESOLUTION 24 Bits
DATA FORMAT

Audio Data Formats (PCM) Left and Right Justified, I2S, TDM
Audio Data Word Length (PCM) 24 Bits
Binary Data Format (PCM) Two’s Complement Binary, MSB First
DSD Output Format and Word Length 1-Bit Data Bits

DIGIT AL INPUT/OUTPUT

Input Logic Level V

Output Logic Level V

Input Leakage

(1)

Current

Input Leakage

(2)

Current

CLOCK FREQUENCIES

System Clock Frequency, f

Sampling Frequency, f

ANALOG INPUTS

Full Scale Input Voltage Differential Input 6.0 V
Average Input Impedance 3 kΩ
Common-mode Rejection 85 dB

DC SPECIFICATIONS

V

12, V

COM

V

12, V

COM

(1)

Applies to the FMT0, FMT1, FMT2, S/M, FS0, FS1, FS2, HPFD, BCK, LRCK, SUB, DSDCLK, DSD1, DSD2, DSD3, DSD4, and SCKI pins.

(2)

Applies to the TEST and RST pins.

(3)

Typical performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement bandwidth
is limited using the Audio Precision 22Hz high-pass filter in combination with either a 20kHz low-pass filter for fS = 48kHz or a 40kHz low-pass
filter for fS = 96kHz and 192kHz. All A-weighted measurements are performed using the A-weighting filter in combination with the band limiting
filters already mentioned. The measurements are made with the RMS detector selected.

(4)

A 256fS system clock is used at final production test for fS = 48kHz measurements.

(5)

Typical DSD performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement
bandwidth is limited using the Audio Precision 22Hz high-pass filter in combination with a 20kHz low-pass filter . All A-weighted measurements
are performed using the A-weighting filter in combination with the band limiting filter already mentioned. The measurements are made with the
RMS detector selected. The 1-bit DSD data is converted to 24-bit linear PCM data for measurement using a PCM4204 configured for DSD input
mode.

34 Output Voltage +2.5 V

COM

34 Output Current 200 µA

COM

SCKI

S

IH

V

IL

OH

V

OL

I

IH

I

IL

I

IH

I

IL

IOH = −2mA 0.8 x V
IOH = +2mA 0 0.2 x V

VIN = V

DD

VIN = 0V −1 −10 µA

VIN = V

DD

VIN = 0V −35 −100 µA

Single Rate Sampling Mode 6.144 38.4 MHz

Dual Rate Sampling Mode 12.8 38.4 MHz

Quad Rate Sampling Mode 12.8 38.4 MHz

Single Rate Sampling Mode 24 54 kHz

Dual Rate Sampling Mode 54 108 kHz

Quad Rate Sampling Mode 108 216 kHz

0.7 x V

DD

0 0.3 x V

DD

+1 +10 µA

+35 +100 µA

V

DD

DD

V

DD

DD

PP

3

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ELECTRICAL CHARACTERISTICS (continued)

Unless otherwise noted, all characteristics specified with TA = +25°C, VCC = +5V , VDD = +3.3V , system clock (SCKI) is 512fS for Single Rate
Sampling, 256fS for Dual Rate Sampling, or 128fS for Quad Rate Sampling. The device is operated in Master mode for all dynamic performance
measurements.

PCM4204

PARAMETER UNITMAXTYPMINTEST CONDITIONS

DYNAMIC PERFORMANCE (PCM Output)

fS = 48kHz

THD+N VIN = −0.5dBFS, fIN = 1kHz −105 −96 dB

Dynamic Range VIN = −60dBFS, fIN = 1kHz, A-weighted 112 118 dB
Channel Separation 105 120 dB

fS = 96kHz

THD+N VIN = −0.5dBFS, fIN = 1kHz, BW = 20Hz to 40kHz −103 dB

Dynamic Range VIN = −60dBFS, fIN = 1kHz, A-weighted 118 dB
Channel Separation 120 dB

fS = 192kHz

THD+N VIN = −0.5dBFS, fIN = 1kHz, BW = 20Hz to 40kHz −103 dB
Dynamic Range VIN = 0V , Unweighted, BW = 20Hz to 40kHz 108 dB

Channel Separation 120 dB

DYNAMIC PERFORMANCE (DSD Output)

64fS Output Rate DSDBCK = 2.8224MHz, BW = 20Hz to 20kHz

THD+N VIN = −0.5dBFS, fIN = 1kHz −103 dB

Dynamic Range VIN = −60dBFS, fIN = 1kHz, A-weighted 115 dB

128fS Output Rate DSDBCK = 5.6448MHz, BW = 20Hz to 20kHz

THD+N VIN = −0.5dBFS, fIN = 1kHz −105 dB

Dynamic Range VIN = −60dBFS, fIN = 1kHz, A-weighted 118 dB

DIGIT AL DECIMATION FIL TER

Single and Dual Rate Sampling Modes

Passband Edge −0.005dB 0.453f
Passband Ripple ±0.005 dB
Stop Band Edge 0.547f
Stop Band Attenuation −100 dB
Group Delay 37/f

(1)
(2)
(3)

(4)
(5)

(4)

Applies to the FMT0, FMT1, FMT2, S/M, FS0, FS1, FS2, HPFD, BCK, LRCK, SUB, DSDCLK, DSD1, DSD2, DSD3, DSD4, and SCKI pins.
Applies to the TEST and RST pins.
Typical performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement bandwidth
is limited using the Audio Precision 22Hz high-pass filter in combination with either a 20kHz low-pass filter for fS = 48kHz or a 40kHz low-pass
filter for fS = 96kHz and 192kHz. All A-weighted measurements are performed using the A-weighting filter in combination with the band limiting
filters already mentioned. The measurements are made with the RMS detector selected.
A 256fS system clock is used at final production test for fS = 48kHz measurements.
Typical DSD performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement
bandwidth is limited using the Audio Precision 22Hz high-pass filter in combination with a 20kHz low-pass filter . All A-weighted measurements
are performed using the A-weighting filter in combination with the band limiting filter already mentioned. The measurements are made with the
RMS detector selected. The 1-bit DSD data is converted to 24-bit linear PCM data for measurement using a PCM4204 configured for DSD input
mode.

(3)

VIN = −60dBFS, fIN = 1kHz −56 dB

VIN = −60dBFS, fIN = 1kHz, BW = 20Hz to 40kHz −52 dB

VIN = 0V , A-weighted 117 dB

(5)

VIN = −60dBFS, fIN = 1kHz −52 dB

VIN = −60dBFS, fIN = 1kHz −56 dB

S

S

S

Hz

Hz

sec

4

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ELECTRICAL CHARACTERISTICS (continued)

Unless otherwise noted, all characteristics specified with TA = +25°C, VCC = +5V , VDD = +3.3V , system clock (SCKI) is 512fS for Single Rate
Sampling, 256fS for Dual Rate Sampling, or 128fS for Quad Rate Sampling. The device is operated in Master mode for all dynamic performance
measurements.

PCM4204

PARAMETER UNITMAXTYPMINTEST CONDITIONS

DIGIT AL DECIMATION FILTER (continued)

Quad Rate Sampling Mode

Passband Edge −0.005dB 0.375f

−3dB 0.490f
Passband Ripple ±0.005 dB
Stop Band Edge 0.770f
Stop Band Attenuation −135 dB
Group Delay 9.5/f

DIGIT AL HIGH PASS FILTER

Frequency Response (−3dB) fS/48000 Hz

POWER SUPPLY

Voltage Range

VCC1, VCC2 +4.75 +5.0 +5.25 VDC

VDD1, VDD2, VDD3 +3.0 +3.3 +3.6 VDC

Power Down Supply Current VCC = +5V , VDD = +3.3V , RST = Low

ICC1 + ICC2 10 mA

IDD1 + IDD2 + IDD3 2 mA

Quiescent Current ICC1 + ICC2 VCC = +5.0V

fS = 48kHz

fS = 96kHz 108 130 mA

fS = 192kHz 108 130 mA

IDD1 + IDD2 + IDD3 VDD = +3.3V

fS = 48kHz

fS = 96kHz 30 44 mA

fS = 192kHz 23 26 mA

Total Power Dissipation VCC = +5V , VDD = +3.3V

fS = 48kHz

fS = 96kHz 640 795 mW

fS = 192kHz 615 736 mW

(1)

Applies to the FMT0, FMT1, FMT2, S/M, FS0, FS1, FS2, HPFD, BCK, LRCK, SUB, DSDCLK, DSD1, DSD2, DSD3, DSD4, and SCKI pins.

(2)

Applies to the TEST and RST pins.

(3)

Typical performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement bandwidth
is limited using the Audio Precision 22Hz high-pass filter in combination with either a 20kHz low-pass filter for fS = 48kHz or a 40kHz low-pass
filter for fS = 96kHz and 192kHz. All A-weighted measurements are performed using the A-weighting filter in combination with the band limiting
filters already mentioned. The measurements are made with the RMS detector selected.

(4)

A 256fS system clock is used at final production test for fS = 48kHz measurements.

(5)

Typical DSD performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement
bandwidth is limited using the Audio Precision 22Hz high-pass filter in combination with a 20kHz low-pass filter . All A-weighted measurements
are performed using the A-weighting filter in combination with the band limiting filter already mentioned. The measurements are made with the
RMS detector selected. The 1-bit DSD data is converted to 24-bit linear PCM data for measurement using a PCM4204 configured for DSD input
mode.

(4)

(4)

(4)

S

S

108 130 mA

18 23 mA

600 726 mW

Hz

S

Hz

S

Hz

sec

5

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PIN ASSIGNMENT

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VIN1
V

IN

NC
NC

V

CC

AGND1
BGND1
DGND1

V

DD

RST

TEST

FS0
FS1
FS2

SCKI

BGND2

−

12+

12

REF

V

V

64 63 62 61 60 59 58 57 56 55 54

−

1
2

1+

12

REF

AGND4

COM

V

NC

−

2+

2

IN

IN

V

V

NC

NC

−

3+

3

IN

V

V

34

IN

NC

COM

V

53 52 51 50 49

3
4
5

1

6
7
8
9

1

PCM4204

10
11
12
13
14
15
16

AGND3

−

34

34+

REF

REF

V

V

48

VIN4+

47

−

V

4

IN

46

NC

45

NC

44

2

V

CC

43

AGND2

42

BGND4

41

DGND3

40

V

3

DD

39

SUB

38

HPFD

37

CLIP4

36

CLIP3

35

CLIP2

34

CLIP1

33

BGND3

17 18 19 20 21 22 23 24 25 26 27

DGND2

2

DD

V

DSD1

DSD2

DSDCLK

S/M

FMT0

FMT1

NC

FMT2

28 29 30 31 32

DSD4

BCK

LRCK

DSD3

SDOUT1

SDOUT2

6

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Terminal Functions

TERMINAL

PIN NO. NAME I/O DESCRIPTION

1 VIN1− Input Channel 1 Analog Input, Inverting
2 VIN1+ Input Channel 1 Analog Input, Non-inverting
3 NC — No Internal Connection

4 NC — No Internal Connection
5 VCC1 Power Analog Supply, +5V Nominal
6 AGND1 Ground Analog Ground
7 BGND1 Ground Substrate Ground
8 DGND1 Ground Digital Ground
9 VDD1 Power Digital Supply, +3.3V Nominal
10 RST Input Reset/Power Down (Active Low with internal pull-up to VDD1)
11 TEST Input Test Pin (Active High with internal pull-down to DGND)
12 FS0 Input Sampling Mode
13 FS1 Input Sampling Mode
14 FS2 Input Sampling Mode
15 SCKI Input System Clock
16 BGND2 Ground Substrate Ground
17 S/M Input Audio Serial Port Slave/Master Mode (0 = Master, 1 = Slave)
18 FMT0 Input Audio Data Format
19 FMT1 Input Audio Data Format
20 FMT2 Input Audio Data Format
21 NC — No Internal Connection
22 DGND2 Ground Digital Ground
23 VDD2 Power Digital Supply, +3.3V Nominal
24 DSDCLK I/O DSD Data Clock
25 DSD1 I/O Channel 1 DSD Data
26 DSD2 I/O Channel 2 DSD Data
27 DSD3 I/O Channel 3 DSD Data
28 DSD4 I/O Channel 4 DSD Data
29 BCK I/O Audio Serial Port Bit Clock
30 LRCK I/O Audio Serial Port Left/Right (or Word) Clock
31 SDOUT1 Output PCM Data for Channels 1 and 2
32 SDOUT2 Output PCM Data for Channels 3 and 4
33 BGND3 Ground Substrate Ground
34 CLIP1 Output Channel 1 Clipping Flag (Active High)
35 CLIP2 Output Channel 2 Clipping Flag (Active High)
36 CLIP3 Output Channel 3 Clipping Flag (Active High)
37 CLIP4 Output Channel 4 Clipping Flag (Active High)
38 HPFD Input High-Pass Filter Disable (Active High)
39 SUB Input TDM Sub-Frame Assignment (0 = SF 0, 1 = SF 1)
40 VDD3 Power Digital Supply, +3.3V Nominal

(1)

For TDM formats, SDOUT1 carries data for all four channels, while SDOUT2 is driven low.

(1)
(1)

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SBAS327A − JUNE 2004 − REVISED SEPTEMBER 2004

Terminal Functions (continued)

TERMINAL

PIN NO. DESCRIPTIONI/ONAME

41 DGND3 Ground Digital Ground
42 BGND4 Ground Substrate Ground
43 AGND2 Ground Analog Ground
44 VCC2 Power Analog Supply, +5V Nominal
45 NC — No Internal Connection
46 NC — No Internal Connection
47 VIN4− Input Channel 4 Analog Input, Inverting
48 VIN4+ Input Channel 4 Analog Input, Non-inverting
49 V
50 V
51 AGND3 Output Analog Ground
52 V
53 NC — No Internal Connection
54 VIN3− Input Channel 3 Analog Input, Inverting
55 VIN3+ Input Channel 3 Analog Input, Non-inverting
56 NC — No Internal Connection
57 NC — No Internal Connection
58 VIN2− Input Channel 2 Analog Input, Inverting
59 VIN2+ Input Channel 2 analog Input, Non-inverting
60 NC — No Internal Connection
61 V
62 AGND4 Ground Analog Ground
63 V
64 V

(1)

For TDM formats, SDOUT1 carries data for all four channels, while SDOUT2 is driven low.

34+ Output Voltage Reference De-Coupling for Channels 3 and 4

REF

34− Output Reference Ground for Channels 3 and 4, connect to AGND

REF

34 Output Common-mode Voltage for Channels 3 and 4, +2.5V Nominal

COM

12 Output Common-mode Voltage for Channels 1 and 2, +2.5V Nominal

COM

12− Output Reference Ground for Channels 1 and 2, connect to AGND

REF

12+ Output Voltage Reference De-Coupling for Channels 1 and 2

REF

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TYPICAL CHARACTERISTICS

At TA = +25°C with VCC = +5V , VDD = +3.3V, and a measurement bandwidth from 20Hz to 20kHz, unless otherwise noted.

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OVERALL CHARACTERISTICS

50

SINGLERATE FILTER

fS=48kHz

0

−

50

Amplitude (dB)

−

100

−

150

−

200

0 0.51.01.52.02.53.03.54.0

Normalized Frequency (f

)

S

PASSBAND RIPPLE CHARACTERISTICS

SINGLE RATEFILTER

0.02
fS=48kHz

0

−

0.02

−

0.04

Amplitude (dB)

−

0.06

−

0.08

−

0.1
0

0.1

0.2

0.3

0.4

Normalized Frequency (f

)

S

0.5

0.6

STOP BAND ATTENUATION CHARACTERISTICS

SINGLE RATEFILTER

0

−

10

fS=48kHz

−

20

)

−

30

S

−

40

−

50

−

60

−

70

−

80

−

90

−

100

−

110

−

120

Normalized Frequency (f

−

130

−

140

−

150

0

0.25
Normalized Frequency (f

0.5

S

0.75

)

1

TRANSIENT BAND CHARACTERISTICS

SINGLE RATE FILTER

0

−

1

−

2

−

3

−

4

−

5

−

6

Amplitude (dB)

−

7

−

8

−

9

−

10

=48kHz

f

S

0.510.490.470.45 0.53 0.55

Normalized Frequency (f

)

S

OVERALLCHARACTERISTICS

DUAL RATE FILTER

50

fS= 96kHz

0

−

50

−

100

Amplitude (dB)

−

150

−

Amplitude (dB)

−

−

−

−

−

200

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.00
Normalized Frequency (f

)

S

−

STOP BAND ATTENUATION CHARACTERISTICS

DUAL RATE FILTER

0

−

10

fS=96kHz

−

20

−

30

−

40

−

50

−

60

−

70

−

80

−

90
100
110
120
130
140
150

0

0.25

0.5

Normalized Frequency (f

S

0.75

)

1

9

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TYPICAL CHARACTERISTICS (continued)

At TA = +25°C with VCC = +5V , VDD = +3.3V, and a measurement bandwidth from 20Hz to 20kHz, unless otherwise noted.

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PASSBAND RIPPLE CHARACTERISTICS

0.02

DUAL RATE FILTER

fS=96kHz

0

−

0.02

−

0.04

Amplitude (dB)

−

0.06

−

0.08

−

0.1
0

0.1

0.2

0.3

0.4

Normalized Frequency(f

0.5

)

S

0.6

0

−

1

−

2

−

3

−

4

−

5

−

6

Amplitude (dB)

−

7

−

8

−

9

−

10

OVERALL CHARACTERISTICS

QUAD RATE FILTER

50

fS= 192kHz

0

−

50

−

100

Amplitude (dB)

−

150

−

200

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10
Normalized Frequency (f

)

S

0

−

10

−

20

−

30

−

40

−

50

−

60

−

70

−

80

−

90

−

100

Amplitude (dB)

−

110

−

120

−

130

−

140

−

150

TRANSIENT BAND CHARACTERISTICS

DUAL RATE FILTER

0.510.490.470.45 0.53 0.55

Normalized Frequency (f

)

S

STOP BAND ATTENUATION CHARACTERISTICS

QUAD RATE FILTER

fS= 192kHz

0

0.25
Normalized Frequency (f

0.5

S

0.75

)

= 96kHz

f

S

1

10

PASSBAND RIPPLE CHARACTERISTICS

QUAD RATE FILTER

0.02
fS=192kHz

0

−

0.02

−

0.04

Amplitude (dB)

−

0.06

−

0.08

−

0.1
0

0.1

0.2

0.3

0.4

Normalized Frequency (f

0.5

)

S

0.6

0

−

1

−

2

−

3

−

4

−

5

−

6

Amplitude (dB)

−

7

−

8

−

9

−

10

TRANSIENT BAND CHARACTERISTICS

QUAD RATE FILTER

fS= 192kHz

−

3.90dB at 0.5f

0.510.490.470.45 0.53 0.55

Normalized Frequency (f

S

)

S

www.ti.com

SBAS327A − JUNE 2004 − REVISED SEPTEMBER 2004

TYPICAL CHARACTERISTICS (continued)

At TA = +25°C with VCC = +5V , VDD = +3.3V, and a measurement bandwidth from 20Hz to 20kHz, unless otherwise noted.

$%

HIGH PASS FILTER

5

−

20

−

40

−

60

Amplitude (dB)

−

80

−

100

0

−

20

−

40

−

60

−

80

−

100

−

120

Amplitude (dB)

−

140

−

160

−

180

STOP BAND CHARACTERISTICS

0.1 0.2 0.3 0.40
Normalized Frequency (f

FFT PLOT

=48kHz,fIN= 997Hz at−20dB)

(f

S

Frequency (Hz)

/1000)

S

1k10020 10k 20k

0.02

0

−

0.02

−

0.04

Amplitude (dB)

−

0.06

−

0.08

−

0.1

00.511.522.533.54

0

−

20

−

40

−

60

−

80

−

100

−

120

Amplitude (dB)

−

140

−

160

−

180

HIGH PASS FILTER

PASSBANDCHARACTERISTICS

Normalized Frequency(f

FFT PLOT

=48kHz,fIN= 997Hz at−60dB)

(f

S

Frequency (Hz)

/1000)

S

1k10020 10k 20k

FFT PLOT

= 48kHz, No Input [Idle])

(f

0

−

20

−

40

−

60

−

80

−

100

−

120

Amplitude (dB)

−

140

−

160

−

180

S

Frequency (Hz)

1k10020 10k 20k

0

−

20

−

40

−

60

−

80

−

100

−

120

Amplitu de (dB)

−

140

−

160

−

180

(f

S

FFT PLOT

=96kHz,fIN= 997Hz at−20dB)

1k10020 10k 40k

Frequency (Hz)

11