SA5753 Datasheet, PDF (8/15 Pages) NXP Semiconductors – Audio processor - filter and control section

Philips Semiconductors
Audio processor – filter and control section
Product specification
SA5753
I²C Address and Access
S A7 A6 A5 A4 A3 A2 A1 A0 ACK F7 F6 F5 F4 F3 F2 F1 F0 ACK ... P
S = start, A0 = 0, ACK = acknowledge, P = stop, A7–0 = SA5753 address fixed internally at 1000000.
Access mode is determined by F7, F6.
All access modes support incremental addressing.
Mode
F7 F6
Action
quick access
0
0 Load F5–F0 to R0B5 – R0B0
quick access
0
1 Load F5-F0 to R1B5 – R1B0
test mode
1
0 For test only. DO NOT USE.
address mode 1
1 F3–F0 point to register
Address Map
REG
Address
F3 F2 F1 F0 B7
R0 0 0 0 0
Y
Register Bits
B6 B5
B4
B3
B2
B1
B0
Y RxM TxM
A2bb1 A2bb0 S9
S10
R1 0 0 0 1
Y
Y DTC S4
S8
S13 S7
S2
R2 0 0 1 0 HD7 HD6 HD5 HD4 HD3 HD2 HD1 HD0
R3 0 0 1 1 LD7 LD6 LD5 LD4
LD3 LD2 LD1 LD0
R4 0 1 0 0 A1b3 A1b2 A1b1 A1b0 A4b3 A4b2 A4b1 A4b0
R5 0 1 0 1 A6b3 A6b2 A6b1 A6b0 NAMPS VCO HPDN S12
R6 0 1 1 0 A2ab4 A2ab3 A2ab2 A2ab1 A2ab0 PWDN IDLE 1 IDLE 0
R7 0 1 1 1 A3b3 A3b2 A3b1 A3b0 A7b3 A7b2 A7b1 A7b0
R8 1 0 0 0 VOX_CTL S3
S5
S6
S11 RxP TxP S1
Y = ignored in address mode.
For all bits TRUE = ‘1’
A1b3–0 = program bits for gain block A1
TxP
= transmit mute polarity
A2ab4–0 = program bits for gain block A2a
DTC
= DTMF continuous
A2bb1–0 = program bits for gain block A2b
S1 = bypass TXBPF
A3b3–0 = program bits for gain block A3
S2 = bypass compressor in TX path, inhibit pre-emph input
A4b4–0 = program bits for gain block A4
S3 = bypass pre-emp and limiter in Tx path
A5b2–0 = program bits for gain block A5
A6b3–0 = program bits for gain block A6
S4 = enable DTMF to TX path and inhibit PREMP_IN and S2.
S5 = bypass RXBPF
A7b3–0 = program bits for gain block A7
HD7–0 = high tone DTMF
S6 = bypass de-emph in RX path
S7 = bypass expandor in RX path, inhibit audio input
LD7–0 = low tone DTMF
NAMPS = program bit for NAMPS offset
VCO
RxM
= 6dB higher TX_OUT
= receive mute
S8 =
S9 =
S10 =
S11 =
enable DTMF to RX path and inhibit AUDIO_IN and S7.
enable SPKR_OUT
enable EAR_OUT
bypass TXLPF
TxM
= transmit mute
S12 = cordless data option established
RxP
= receive mute polarity
S13 = enable data path
VOX_CTL = enable VOX of compandor/expander circuit. This bit appears at the VOX_CTL pin (Pin 5) of the SA5753.
HPDN = enable power down of compandor circuit. This bit appears at the HPDN pin (Pin 6) of the SA5753
PWDN, IDLE1, IDLE0 see Table below
Low Power Modes (R6B0 – R6B2)
PWDN IDLE1 IDLE0
1
X
X
(PWDN) Complete power down except I²C, I/Os high impedance.
0
1
0
(DENA) Low power, I/Os at V_DD/2, DATA_IN to TX_OUT enabled.
0
1
1
(IDLE) Low power, I/Os at V_DD/2, DATA_IN to TX_OUT disabled.
0
0
0
Normal operation.
0
0
1
DATA_IN to TX_OUT disabled.
X = don’t care.
SR00667
1997 Nov 07
8