SAA7818HL Datasheet, PDF (7/30 Pages) NXP Semiconductors – DVD and CD playback IC

Philips Semiconductors
SAA7818HL
DVD and CD playback IC
9397 750 14312
Product data sheet
Table 3: Pin description …continued
Symbol
Pin Type ^[1] Drive/
Description
threshold
UOPT
23 AI
upper reference input voltage for ADC ladder
SIN_PHI
24 AI
sine input from hall detectors
COS_PHI
25 AI
cosine input from hall detectors
XDET
26 AI
auxiliary ADC input
ACT_EMFP
27 AI
EMF of the actuator; positive input
ACT_EMFN
28 AI
EMF of the actuator; negative input
V_DDA3
UOPB
29 P
30 AI
analog supply voltage 3 (3.3 V)
decoupling point for ADC ladder
V_SSA3
D1
31 P
32 AI
analog ground 3
diode input 1
D2_TLN
33 AI
diode input 2 or normal track-loss signal
D3_REN
34 AI
diode input 3 or normal radial error signal
D4_FEN
35 AI
diode input 4 or normal focus error signal
S1_MIRN
36 AI
satellite diode input 1/normal mirror signal
S2
37 AI
satellite diode input 2
V_RIN
FTCH
38 AI/O
39 AI
I/O reference voltage for servo ADC
track count input
V_SSD(P2)
40 P
digital ground 2 for the pad cells
V_DDD(P2)
41 P
digital supply voltage 2 for the pad cells (3.3 V)
P5_7_DEFO_N 42 B
M/T
defect output or general purpose I/O
P5_6_DEFI_N 43 B
M/T
defect input or general purpose I/O
P5_5_TL
44 B
M/T
track-loss measure output or general purpose I/O
P5_4_RP_FOK 45 B
M/T
radial polarity or focus OK or general purpose I/O
P5_3_CE1
46 B
M/T
CS external SRAM or general purpose I/O
P5_2_CLO
47 B
M/T
servo clock output or general purpose I/O
P5_1_SDA
48 B
M/T
I²C-bus data or general purpose I/O
P5_0_SCL
49 B
M/T
I²C-bus clock or general purpose I/O
SCCLK
50 O
internal/external microcontroller clock
[mace_debug = int1 (PLUM)]
V_DDD(P3)
V_SSD(P3)
RA
51 P
52 P
53 O
M
digital supply voltage 3 for the pad cells (3.3 V)
digital ground 3 for the pad cells
radial output (3-state during reset)
FO
54 O
M
focus output (3-state during reset)
SL
55 O
M
sledge output (3-state during reset)
RAC_SW
56 O
M
disconnects radial actuator (1 = disconnect)
REF_SIN
57 O
M
PDM reference signal output; removes DC offset
from sin_phi
REF_COS
58 O
M
PDM reference signal output; removes DC offset
from cos_phi
V_DDD(P4)
V_SSD(P4)
59 P
60 P
digital supply voltage 4 for the pad cells (3.3 V)
digital ground 4 for the pad cells
Rev. 03 — 25 November 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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