isp1302 NXP Semiconductors, isp1302 Datasheet - Page 12

• Manufacturer Part Number: isp1302
• Description: Isp1302 Universal Serial Bus On-the-go Transceiver With Carkit Support
• Manufacturer: NXP Semiconductors

NXP Semiconductors
ISP1302_1
Product data sheet
7.8 Audio bypass
7.9 Audio data control
The audio bypass block includes audio switches and DC bias circuits, see
Audio switches provide a low impedance path for analog audio signals from the phone
processor to be routed to the DP and DM lines. The impedance of the switches will be
between 50
Figure 8
audio data controller is described in the following subsections.
Fig 7. Audio bypass
shows a diagram that includes the audio data controller. Each block within the
DP
DM
and 150 .
AGND
AGND
VREG
VREG
R B1
R B2
R B2
R B1
Rev. 01 — 24 May 2007
Figure 7
SPKR_R_
BIAS_EN
SPKR_L_
BIAS_EN
shows audio switches and DC biasing circuits.
SW_MIC_
SPKR_L
USB OTG transceiver with carkit support
SPKR_L_EN
SPKR_MIC_EN
S3
S1
004aaa628
SPKR_R/MIC
SPKR_L
© NXP B.V. 2007. All rights reserved.
ISP1302
Figure
7.
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