PCM2705CDBR | |
|---|---|
| Manufacturer Part Number | PCM2705CDBR |
| Description | IC DAC 16BIT STEREO W/USB 28SSOP |
| Manufacturer | Texas Instruments |
| Series | - |
| Type | DAC, USB |
| PCM2705CDBR datasheets |
|
Availability: By request
International delivery:
Warranty: 60 days
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- We provide standard 60-days warranty for all parts. If warranty differs we always mention it beforehand. In case of return we cover shipping costs.
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Specifications of PCM2705CDBR | |||
|---|---|---|---|
| Applications | USB Audio | Mounting Type | * |
| Package / Case | * | Lead Free Status / Rohs Status | Lead free / RoHS Compliant |
| Other names | 296-29562-2 | ||
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Device Configuration
Figure 23
illustrates the USB audio function topology. The PCM2704C/5C/6C/7C have three interfaces. Each
interface is enabled by different alternative settings.
Endpoint #0
Default
Endpoint
Endpoint #2
(I/F #1)
Audio Streaming
Interface
Endpoint #5
(I/F #2)
HID Interface
Figure 23. USB Audio Function Topology
Interface #0 (Default/Control Interface)
Interface #0 is the control interface. Setting #0 is the only possible setting for interface #0. Setting #0 describes
the
standard
audio
control
interface.
PCM2704C/5C/6C/7C have three terminals:
•
Input terminal (IT #1) for isochronous-out stream
•
Output terminal (OT #2) for audio analog output
•
Feature unit (FU #3) for DAC digital attenuator
Input terminal #1 is defined as a USB stream (terminal type 0x0101). Input terminal #1 can accept two-channel
audio streams consisting of left and right channels. Output terminal #2 is defined as a speaker (terminal type
0x0301). Feature unit #3 supports these sound control features:
•
Volume control
•
Mute control
The built-in digital volume controller can be manipulated by an audio-class-specific request from 0 dB to –64 dB
in steps of 1 dB. Changes are made by incrementing or decrementing one step (that is, 1 dB) for every 1/f
interval, until the volume level reaches the requested value. Each channel can be set to a separate value. The
master volume control is not supported. A request to the master volume is stalled and ignored. The built-in digital
mute controller can be manipulated by an audio-class-specific request. A master mute control request is
acceptable. A mute control request to an individual channel is stalled and ignored. The digital volume control
does not affect either the S/PDIF or I
Copyright © 2011, Texas Instruments Incorporated
Product Folder Link(s):
FU
IT
TID1
UID3
Standard Audio Control Interface (I/F #0)
The
audio
control
interface
2
S outputs (PCM2706C/7C only).
PCM2704C PCM2705C PCM2706C PCM2707C
PCM2704C, PCM2705C
PCM2706C, PCM2707C
SBFS036 – AUGUST 2011
OT
Analog Out
TID2
PCM2704C/5C/6C/7C
consists
of
a
terminal.
The
time
S
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17
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