sta1050 STMicroelectronics, sta1050 Datasheet - Page 5

• Manufacturer Part Number: sta1050
• Description: Cd-audio One-chip
• Manufacturer: STMicroelectronics

STA1050
Table 1.
N°
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
FE_VDDA33R
FE_CEXT
FE_REXT
FE_VSSA33R
FE_MD_LAS
FE_CAP_LAS
FE_LD_LAS
FE_LD1_LAS
FE_VDDPAD2
FE_VDDA33T
FE_TESTP
FE_TESTN
FE_VSSA33T
FE_VDDA18AD
FE_VSSA18AD
#nc
FFSR
#nc
REFFSR
SPDL
SLED1
SLED2
ICC1/GPB6
ICC2/GPB7
VDD_TOP
TFSR
VSS_TOP
VSSPAD1
VDDPAD2
VDDPAD3
ICD_N
DRD4/FLASH_OE
GPB0/CAV
GPA7
GPA6
Pin List- LQFP128 (continued)
Name
Analog Ground Bandgap
Test Buffer Negative Output
Analog ground ADC
SLED motor control signal output1 (stepping/DC) - PDM
Tracking actuator control signal output - PDM
Pad Ring ground
3.3V for Digital Pad Ring
3.3V for Digital Pad Ring
Analog 3.3V for Bandgap
external cap for bandgap (1nF)
external res for bandgap (25kOhm)
Laser driver input from monitor diode
Laser driver compensation cap (30nF)
First Laser driver output
Second Laser driver output
3.3V for AFE pad ring
Analog 3.3V for test buffer
Test Buffer Positive Output
Analog Ground Test Buffer
Analog 1.8V ADC
to be connected to ground on PCB
Focusing actuator control signal output - PDM
to be connected to ground on PCB
Clock (50% duty cycle) for Actuator PDM reference
Spindle motor control signal output - PDM
SLED motor control signal output2 (stepping) -PDM
Serial interface TX or ST7 GPIO PB6
Serial interface RX or ST7 GPIO PB7
Core VDD 1.8V
Core VSS Ground
On-Chip-Emulator enable
SDRAM Data 4 or FLASH Output Enable
ST7 GPIO PB0 or CAV feedback input
ST7 GPIO PA7 (external interrupt)
ST7 GPIO PA6
Description
Pin function description
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
bidir, 3.3V, 2mA
analog out
analog out
analog out
analog out
Pin Type
analog in
in, 3.3V
analog
analog
analog
Vdd
Vdd
Vdd
Vdd
Vdd
Vdd
Vdd
Vss
Vss
Vss
Vss
Vss
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