LG LG-P970 - Functional Description

3. TECHNICAL BRIEF
- 85 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
RX path
SDRR2
SDRL2
I2S
interface
TDM/I2S_ CLK
TDM/I2S_ SYNC
TDM/I2S_DIN
TDM/I2S_ DOUT
MIC_MAIN_P
MIC_MAIN_M
MIC_SUB_P
MIC_SUB_M
AUXR/FMR
AUXL/FML
Mic
Mic
PCM
interface
8/16kHz
FM
Radioloop
VRXPGA
Fine gain
VDL
filter
DAC
voice
Input amps
VSTPGA
voice sidetone
(test only)
PCM _ VDR
PCM _ VDX
VRX2 ARX
PGA
PLL audio
+ div voice
Ampli_R
Ampli_L
.
ALC is available only for the Main Mic and the Sub Mic
Carkit preamplifiers
To USB block
Ampli_Ear
Modulator
2nd
24bits
@48 kHz
Voice: 125 Fs
Audio: 80 Fs
ADCR
ADCL
ARX2 VTXPGA
Audio AL2
Audio AL1
Audio AR2
Audio AR1
Voice A
FMR
FML
VDR
HSMICP
HSMICM
DINP
EAR_P
EAR_M
IHF_LEFT_P
IHF_LEFT_M
From USB block
Bluetooth
interface
+
+
HSOR
Audio filter R1
Audio filter L1
Voice stereo path
Audio stereo path
TX path
VUL filter�R
VUL filter�L
Audio
Filter R2
Audio
Filter L2
Digital mono
SDRM2
+
BTSTPGA
Bluetooth
Sidetone
+
BTTXPGA
BTRXPGA
Coasegain
+
+
+
DTMF
TNG2 TNG1
+
TNG3
TN
ATT
-18 db0d B
PCM _ VCK
PCM_ VFS
BT_PCM_VDR
BT_ PCM_VDX
Modulator
2nd
DACL2
M
U
X
M
U
X
M
U
X
M
U
X
M
U
X
DL1
Voice D
Audio
DL2
Audio
DR2
M
U
X
M
U
X
Modulator
2nd
DACR2
Modulator
2nd
DACL1
Modulator
2nd
DACR1
Digital
Mixing
M
U
X
M
U
X
M
I
X
M
I
X
M
I
X
M
I
X
M
I
X
M
I
X
IHF_RIGHT_P
IHF_RIGHT_M
PreDriv_RIGHT
PreDriv_LEFT
or HSOVMID
HSOL
Vmid
Analog mixing
-50 to -10 d B
1 dB step+ mute
-15 to 30 dB
3 dB step
-30 to15 dB
3 dB step
TNG4
AVTXR2PGA
finegain
ATXR1PGA
ATXL1PGA
finegain
AVTXL2PGA
fine gain
VDL_ GAIN
Analog PGA
ARXR1
Analog PGA
ARXL1
Analog PGA
ARXR2
Analog PGA
ARXL2
Analog PGA
+
+
Carkit R
Carkit L
PRECKT_Left
PRECKT_Right
Gain=
1 or 1
Two output amplifiers
can be driven by an
analog RXPGA amplifier
simultaneously.
VDXM
VDXS
BTDIN
BTDOUT
ARXR1PGA
coarse gain
ARXL1PGA
ARXR2PGA
ARXL2PGA
Audio
DR1
Audio
DL1
M
I
X
DIG_MIC0
DIG_MIC_CLK0
50 Fs
Digital micro
interface
DINM
HFCLKIN
audio-006
Coasegain
-36to12dB
1dBstep+mute
-42to0dB
6dBstep
-42to0dB
6dBstep
-24to12dB
2-dbstep+mute
CrossR/L possibleforPredriverD/DriverDoutputs
-6dB,0dB,6dB
Ampli_HS
Ampli_Pre�D
Ampli_Pre�D
Ampli_HS
-50to-10dB
1dBstep+mute
-24to0dB
1dBstep+mute
-15to0dB
1.0dBstep
-15to0dB
1.0dBstep
Digitalmixing
coarse gain
coarse gain
coarse gain
-62to0dB0dBto12dB
1-dBstep6-dBstep
+mute
ARXR1PGA
fine�gain
+�boost
ARXL2PGA
fine�gain
ARXL1PGA
fine�gain
+�boost
ARXR2PGA
fine�gain
Class-DR
Class-DL
-6dB,0dB,+6dB
0dB,+6dB,+12dB
.
.
.
ALC+ AA filter
1-dBstep(ALC)
6-dBstep(LINE)
0to31dB
1-dBstep
finegain
channel2
channel1
19.2/26/38.4MHzclock
ATX2ARXR_PGA
ATX2ARXL_PGA
-24to0dB
6-dBstep+mute
-62to0dB
6-dBstep+mute
Digitalloop
Loopback�func
M
U
X
M
U
X
Register
OCP
interface
PWM
generator
H-bridge
vibrator
VIBRA_P
VIBRA_M
TI Confidential — NDA Restrictions
www.ti.com Functional Description
Figure 14-7. Voice/Audio Option2 (OPT_MODE = 0) Block Diagram
671
SWCU051F–March 2008 –Revised July 2010 Audio
Copyright © 2008–2010, Texas Instruments Incorporated
Figure. Detailed diagram of TWL5034 audio interface