Pin Name Function Description69 GPIO_5 Bidirectional, pull-down GPIO70 TEST Input, pull-down Test mode, tie to ground71 SPI_CK Input, pull-down SPI control input clock72 SPI_CS Input, pull-down SPI control input chip select73 SPI_DATA Bidirectional, pull-down SPI control data input/output74 P1V8 - 1.8 V core supply75 GND - Ground76 P3V3 - 3.3 V I/O supply77 GPIO_6 Bidirectional, pull-down GPIO78 GPIO_7 Bidirectional, pull-down GPIO79 VPD - Test mode, tie to ground80 CH_4_5_AUDIO_WS Input, pull-down Channels 4, 5 audio input word clock81 CH_4_5_AUDIO_SD Input, pull-down Channels 4, 5 audio input data82 CH_4_5_AUDIO_SCK Input, pull-down Channels 4, 5 audio input bit clock83 CH_6_7_AUDIO_WS Input, pull-down Channels 6, 7 audio input word clock84 CH_6_7_AUDIO_SD Input, pull-down Channels 6, 7 audio input data85 CH_6_7_AUDIO_SCK Input, pull-down Channels 6, 7 audio input bit clock86 P1V8 - 1.8 V core supply87 GND - Ground88 P3V3 - 3.3 V I/O supply89 CH7_PWM0 Output Channel 7 low side drive90 CH7_PWM1 Bidirectional, pull-down Channel 7 high side drive or channel 6/7PWM sense control91 CH7_PWM2 Output Channel 7 high side drive92 CH6_PWM0 Output Channel 6 low side driveProduction Information© 2012 Cambridge Silicon Radio LimitedThis material is subject to CSR's non-disclosure agreement.Page 18 of 181CS-225959-DSP6www.csr.comCSRA6600/CSRA6601 Direct Digital Feedback Amplifier Data SheetPin Name Function Description93 CH6_PWM1 Bidirectional, pull-down Channel 6 high side drive or channel 6/7PWM sense control94 CH6_PWM2 Output Channel 6 high side drive95 P3V3 - 3.3 V I/O supply96 GND - Ground97 CH5_PWM0 Output Channel 5 low side drive98 CH5_PWM1 Bidirectional, pull-down Channel 5 high side drive or channel 4/5PWM sense control99 CH5_PWM2 Output Channel 5 high side drive100 CH4_PWM0 Output Channel 4 low side drive101 CH4_PWM1 Bidirectional, pull-down Channel 4 high side drive or channel 4/5PWM sense control102 CH4_PWM2 Output Channel 4 high side drive103 P3V3 - 3.3 V I/O supply104 GND - Ground105 P1V8 - 1.8 V core supply106 C7P1V8 - 1.8 V core supply (quiet)107 CH7_REF0 Output, tristate Channel 7 reference 0 output108 C7P3V3 - 3.3 V I/O supply (quiet)109 C7GND - Ground110 CH7_REF1 Output, tristate Channel 7 reference 1 output111 CH7_REF2 Output, tristate Channel 7 reference 2 output112 CH7_FB0 Bidirectional, pull-up Channel 7 low resolution feedback inputor channel 6/7 I²S output word clock113 CH7_FB1 Bidirectional, pull-up Channel 7 high resolution feedback inputor channel 6/7 I²S output data114 C67P1V8 - 1.8 V core supply (quiet)Production Information© 2012 Cambridge Silicon Radio LimitedThis material is subject to CSR's non-disclosure agreement.Page 19 of 181CS-225959-DSP6www.csr.comCSRA6600/CSRA6601 Direct Digital Feedback Amplifier Data Sheet77