Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- ORDERING INFORMATION
- ABSOLUTE MAXIMUM RATINGS
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- THERMAL INFORMATION
- THERMAL INFORMATION
- DEVICE INFORMATION
- FUNCTIONAL BLOCK DIAGRAMS
- TYPICAL CHARACTERISTICS: INTERNAL FILTER
- TYPICAL CHARACTERISTICS: GENERAL
- DETAILED DESCRIPTION
- Clock and Reset
- Operation Mode Selection
- USB Interface
- DAC
- Digital Audio Interface: S/PDIF Output
- Digital Audio Interface: I2S Interface Output (PCM2706C/7C)
- DESCRIPTOR DATA MODIFICATION
- External ROM Descriptor (PCM2704C/6C)
- External ROM Example
- Serial Programming Interface (PCM2705C/7C)
- SPI Register (PCM2705C/7C)
- USB Host Interface Sequence
- EXAMPLE CIRCUITS
- Revision History
D+ / D-
SSPND
V L
V R
OUT
OUT
Idle
Active
Active
2.5 ms
5 ms Suspend
Detach
1 ms
V
BUS
D+ / D-
V L
V R
OUT
OUT
SOF SOF SOF SOF SOF
Audio Data Audio Data Last Audio Data
PCM2704C, PCM2705C
PCM2706C, PCM2707C
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SBFS036A –AUGUST 2011–REVISED JULY 2012
Play, Stop, and Detach Sequence
When the host finishes or aborts playback, the PCM2704C/5C/6C/7C stop playing after the last audio data output
is complete. Figure 32 illustrates the play, stop, and detach sequence.
Figure 32. Play, Stop, and Detach Sequence
Suspend and Resume Sequence
The PCM2704C/5C/6C/7C enter a suspended state after the USB bus has been in a constant idle state for
approximately 5 ms. While the PCM2704C/5C/6C/7C are in this suspended state, the SSPND flag (pin 27 for the
PCM2704C/5C, pin 11 for the PCM2706C/7C) is asserted. The PCM2704C/5C/6C/7C wake up immediately
when detecting a non-idle state on the USB bus. Figure 33 shows the operating sequence for the suspend and
resume process.
Figure 33. Suspend and Resume
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Product Folder Link(s): PCM2704C PCM2705C PCM2706C PCM2707C