BCM89071A1CUBXGT Datasheet, PDF (59/69 Pages) Cypress Semiconductor – Single-Chip Automotive Grade Bluetooth Transceiver and Baseband Processor

BCM89071 Data Sheet
Timing and AC Characteristics
Table 24: PCM Interface Timing Specifications (Long Frame Synchronization, Master Mode)
Reference Characteristics
Minimum Maximum Unit
1
PCM bit clock frequency
128
2048
kHz
2
PCM bit clock HIGH time
209
–
ns
3
PCM bit clock LOW time
209
–
ns
4
Delay from PCM_BCLK rising edge to PCM_SYNC HIGH –
50
ns
during first bit time
5
Delay from PCM_BCLK rising edge to PCM_SYNC LOW –
50
ns
during third bit time
6
Delay from PCM_BCLK rising edge to data valid on
–
50
ns
PCM_OUT
7
Setup time for PCM_IN before PCM_BCLK falling edge 50
–
ns
8
Hold time for PCM_IN after PCM_BCLK falling edge
10
–
ns
9
Delay from falling edge of PCM_BCLK during last bit period –
50
ns
to PCM_OUT becoming high impedance
Figure 14: PCM Interface Timing (Long Frame Synchronization, Master Mode)
PCM_BCLK
PCM_SYNC
2
1
4
3
5
PCM_OUT
PCM_IN
6
Bit 0
Bit 1
Bit 2
7
8
Bit 0
Bit 1
Bit 2
9
Bit 15
HIGH
IMPEDENCE
Bit 15
Broadcom^®
April 16, 2015 • 89071-DS106-R
Baseband Transceiver and Baseband Processor
Page 58