Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

PCM1738E Datasheet(PDF) 11 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
Part # PCM1738E
Description  24-Bit, 192kHz Sampling, Advanced Segment, Audio-Stereo DIGITAL-TO-ANALOG CONVERTER
Download  33 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  BURR-BROWN [Burr-Brown (TI)]
Direct Link  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

PCM1738E Datasheet(HTML) 11 Page - Burr-Brown (TI)

Back Button PCM1738E Datasheet HTML 7Page - Burr-Brown (TI) PCM1738E Datasheet HTML 8Page - Burr-Brown (TI) PCM1738E Datasheet HTML 9Page - Burr-Brown (TI) PCM1738E Datasheet HTML 10Page - Burr-Brown (TI) PCM1738E Datasheet HTML 11Page - Burr-Brown (TI) PCM1738E Datasheet HTML 12Page - Burr-Brown (TI) PCM1738E Datasheet HTML 13Page - Burr-Brown (TI) PCM1738E Datasheet HTML 14Page - Burr-Brown (TI) PCM1738E Datasheet HTML 15Page - Burr-Brown (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 33 page
background image
PCM1738
11
SBAS174B
SYSTEM CLOCK AND RESET
FUNCTIONS
SYSTEM CLOCK INPUT
The PCM1738 requires a system clock for operating the
digital interpolation filters and advanced segment DAC
modulators. The system clock is applied at the SCKI input
(pin 7). The PCM1738 has a system-clock detection circuit
that automatically senses if the system clock is operating at
128fS to 768fS. Table I shows examples of system-clock
frequencies for common audio sampling rates.
Figure 1 shows the timing requirements for the system clock
input. For optimal performance, it is important to use a clock
source with low phase jitter and noise. The PLL1700 multi-
clock generator is an excellent choice for providing the
PCM1738 system clock.
SYSTEM CLOCK OUTPUT
A buffered version of the system clock input is available at
the SCKO output (pin 10). SCKO can operate at either full
(fSCKI) or half (fSCKI/2) rate. The SCKO output frequency
may be programmed using the CLKD bit of Control Regis-
ter 19. The SCKO output pin can also be enabled or disabled
using the CLKE bit of Control Register 19. The default is
SCKO enabled.
POWER-ON AND EXTERNAL RESET FUNCTIONS
The PCM1738 includes a power-on reset function (see
Figure 2). The system clock input at SCKI should be active
for at least one clock period prior to VDD = 2.0V. With the
system clock active, and VDD > 2.0V, the power-on reset
function will be enabled. The initialization sequence re-
quires 1024 system clocks from the time VDD > 2.0V. After
the initialization period, the PCM1738 will be set to its reset
default state, as described in the Mode Control Register
section of this data sheet.
The PCM1738 also includes an external reset capability
using the RST input (pin 1). This allows an external control-
ler or master reset circuit to force the PCM1738 to initialize
to its reset default state.
See Figure 3 for external reset operation and timing. The
RST pin is set to a logic “0” for a minimum of 20ns. The
RST pin is then set to a logic “1” state that starts the
initialization sequence that requires 1024 system clock peri-
ods. After the initialization sequence is complete, the
PCM1738 will be set to its reset default state, as described
in the Mode Control Register section of this data sheet.
The external reset is especially useful in applications where
there is a delay between the PCM1738 power-up and system
clock activation. In this case, the RST pin should be held at
a logic “0” level until the system clock has been activated.
The RST pin may then be set to a logic “1” state to start the
initialization sequence.
FIGURE 1. System Clock Input Timing.
SAMPLING
FREQUENCY
128fS
192fS
256fS
384fS
512fS
768fS
32kHz
4.0960
6.1440
8.1920
12.2880
16.3840
24.5760
44.1kHz
5.6488
8.4672
11.2896
16.9344
22.5792
33.8688
48kHz
6.1440
9.2160
12.2880
18.4320
24.5760
36.8640
96kHz
12.2880
18.4320
24.5760
36.8640
49.1520
73.7280
192kHz
24.5760
36.8640
49.1520
73.7280
See Note (1)
See Note (1)
NOTE: (1) This system clock is not supported for the given sampling frequency.
TABLE I. System Clock Rates for Common Audio Sampling Frequencies.
SYSTEM CLOCK FREQUENCY (fSCLK) (MHz)
t
SCKH
t
SCKL
2.0V
0.8V
System Clock
System clock pulse
cycle time(1)
“H”
“L”
System Clock Pulse Width HIGH t
SCKH: 5ns (min)
System Clock Pulse Width LOW t
SCKL: 5ns (min)


Similar Part No. - PCM1738E

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
PCM1738E TI1-PCM1738E Datasheet
709Kb / 47P
[Old version datasheet]   Audio-Stereo Digital-to-Analog Converter
PCM1738E/2K TI1-PCM1738E/2K Datasheet
709Kb / 47P
[Old version datasheet]   Audio-Stereo Digital-to-Analog Converter
PCM1738EG4 TI1-PCM1738EG4 Datasheet
709Kb / 47P
[Old version datasheet]   Audio-Stereo Digital-to-Analog Converter
More results

Similar Description - PCM1738E

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
PCM1793 TI-PCM1793 Datasheet
234Kb / 25P
[Old version datasheet]   24 BIT 192KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
PCM1792 TI-PCM1792 Datasheet
517Kb / 10P
[Old version datasheet]   24 BIT 192KHZ SAMPLING ADVANCED SEGMENT, AUDIO STEREO DIGITAL TO ANALOG CONVERTER
DSD1796 TI1-DSD1796_14 Datasheet
841Kb / 61P
[Old version datasheet]   24BIT 192KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
PCM1794 TI-PCM1794 Datasheet
241Kb / 27P
[Old version datasheet]   24BIT 192KHZ SAMPLING , ADVANCED SEGMENT, AUDIO STEREO DIGITAL TO ANALOG CONVERTER
DSD1796 TI-DSD1796 Datasheet
460Kb / 53P
[Old version datasheet]   24BIT 192KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
DSD1794A TI-DSD1794A Datasheet
535Kb / 49P
[Old version datasheet]   24-BIT,192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-TO-ANALOG CONVERTER
DSD1791 TI1-DSD1791_08 Datasheet
654Kb / 56P
[Old version datasheet]   24 BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
logo
Burr-Brown (TI)
PCM1796 BURR-BROWN-PCM1796_06 Datasheet
706Kb / 60P
   24-BIT, 192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-TO-ANALOG CONVERTER
logo
Texas Instruments
DSD1791 TI-DSD1791 Datasheet
446Kb / 53P
[Old version datasheet]   24 BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
PCM1730 TI-PCM1730 Datasheet
366Kb / 24P
[Old version datasheet]   24-BIT, 192-kHz SAMPLING ADVANCED SEGMENT, AUDIO STEREO DIGITAL-TO-ANALOG CONVERTER
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com