Laird BT800 series, Руководство по интеграции оборудования

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BT800 Hardware Integration Guide
Version 0.2
Americas: +1-800-492-2320 Option 2
Europe: +44-1628-858-940
Hong Kong: +852-2923-0610
www.lairdtech.com/bluetooth
18 CONN-GUIDE-BT800_v0_2

13-bit linear, 16-bit linear and 8-bit µ-law or A-law sample formats.

A sample rate of 8ksps.

Little or big endian bit order.

For 16-bit slots, the 3 or 8 unused bits in each slot are filled with sign extension, padded with zeros
or a programmable 3-bit audio attenuation compatible with some codecs.
Figure 8: 16-bit Slot Length and Sample Formats
PCM Timing Information 9.7
Table 9: PCM Timing information.
Symbol Parameter Min Typ Max Unit
f
mclk
PCM_CLK frequency
4MHz DDS generation.
Frequency selection is
programmable.
-
128
- kHz 256
512
48MHz DDS generation.
Frequency selection is
programmable.
2.9 - - kHz
- PCM_SYNC frequency for SCO connection - 8 - kHz
t
mclkh
(a)
PCM_CLK high 4MHz DDS generation 980 - - ns
t
mclkl
a) PCM_CLK low 4MHz DDS generation 730 - - ns
-
PCM_CLK jitter 48MHz DDS generation - - 21
ns
pk-p