Type‐S Portable IC Comparison - MiniDisc-wiki/md-firmware GitHub Wiki

Sony Portables utilize many different chips depending on the model. The largest differences are related to the audio amps and EEPROM.

Comparison Chart

Device           CORE HEADPHONE AMP MIC AMP / INPUT A2D EEPROM POWER AMP RF AMP RTC MOTOR DRIVER REC DRIVER BATTERY CHARGER
MZ-N10 CXD2678-202GA AN17020A-VB AK5356VN-L AK6510CL-L SC901580EPR2 SN761058ZQLR R2061K01-E2 SC111258EPR2 SC901581EPR2 SC901582EPR2
MZ-N910 CXD2680-207GA AN17020A-VB AK5356VN-L AK6510CL-L SC901580EPR2 SN761058AZQLR SC111258EPR2 XPC18A22AEPR2 SC901582EPR2
MZ-N920 CXD2680-? SC582 AK5356 AK6510CL-L SC901580EPR2 SN761058AZQLR SC111258EPR2 XPC18A22AEPR2 SC901582EPR2
MZ-NF810 CXD2680-203GA TA2131FL AK5356 AK6510CL-L SC901580EPR2 SN761058ZQLR SC111258EPR2 XPC18A22AEPR2 SC901582EPR2
MZ-N710 CXD2680-207GA TA2131FL AK5356 AK6510CL-L SC901580EPR2 SN761058ZQLR SC111258EPR2 XPC18A22AEPR2 SC901582EPR2
MZ-NF610 CXD2680GA (CXD2676) TA2131FL (EL) AK5354VT-E2 AK6417AL-L SC901580EPR2 SN761058AZQLR SC111258EPR2 XPC18A22AEPR2 SC901582EPR2
MZ-N510 CXD2680GA (CXD2676) TA2131FL (EL) AK5354VT-E2 AK6417AL-L SC901580EPR2 SN761058AZQLR SC111258EPR2 XPC18A22AEPR2 SC901582EPR2
MZ-N520 CXD2680-207GA TA2131FL (EL) AK5354VT-E2 AK6417AL-L SC901591EPR2 SN761058AZQLR SC111290EPR2 SC111292EPR2 SC901582EPR2
MZ-NE410 CXD2680GA (CXD2676) NJM2776RB2 (TE2) AK6417AL-L SC901580EPR2 SN761058ZQLR SC111258EPR2 XPC18A22AEPR2
MZ-N420D, MZ-DN430 CXD2680-207GA NJM2776RB2A(TE2) AK6417AL-L SC901591EPR2 SN761058AZQLR SC111290EPR2 SC111292EPR2
MZ-NE810 CXD2680-207GA SC582 .. SC901580EPR2 SN761058AZQLR SC111258EPR2 XPC18A22AEPR2
AM-NX1 CXD2680-207GA AN17020A-VB AK6510CL-L SC901580EPR2 SN761058AZQLR SC111258EPR2 XPC18A22AEPR2 SC901582
MZ-B10 CXD2680-207GA TA2131FL AK5356VN-L AK6480AM-E2 SC901580EPR2 SN761058AZQLR SC111258EPR2 XPC18A22AEPR2
AM-NX9 CXD2680-207GA TA2131FL AK6417AL-L SC901580EPR2 SN761058AZQLR SC111258EPR2 XPC18A22AEPR2

Chip Notes

Headphone Amp Notes
Panasonic AN17020A Has line out.
Toshiba TA2131FL No line out.
Nisshinbo NJM2776RB2 Cheapest version, simple, lower quality.
Motorola SC582 Digital AMP, produced for Sony?
Input Amp Notes
AK5356 Has Mic amp
AK5354 No Mic Amp
Fun Fact AK5354 and AK5356 have the same commands and practically the same data registers. However, the AK5356 uses a MSB-first layout for values, while the AK5354 uses LSB-first values. This means that the firmware needs to explicitly handle them differently.
EEPROM Notes
AK6510CL 32kbit, 8-bit words
AK6417AL 16kbit, 16-bit words
AK6480AM 8kbit, 16-bit words