Features: ` NICAM cannot be processed simultaneously with secondary channel (see Fig. 22 and Fig. 23 on page 10).
` FM adaptive deemphasis cannot be processed simultaneously with FM-identification.
Pinout
Specifications
|
Symbol |
Parameter |
Pin Name |
Min. |
Max. |
Unit |
|
TA |
Ambient Operating Temperature |
|
0 |
70 |
|
|
TS |
Storage Temperature |
|
40 |
125 |
|
|
VSUP1 |
First Supply Voltage |
AHVSUP |
0.3 |
9.0 |
V |
|
VSUP2 |
Second Supply Voltage |
DVSUP |
0.3 |
6.0 |
V |
|
VSUP3 |
Third Supply Voltage |
AVSUP |
0.3 |
6.0 |
V |
|
dVSUP23 |
Voltage between AVSUP
and DVSUP |
AVSUP,
DVSUP |
0.5 |
0.5 |
V |
|
PTOT |
Package Power Dissipation
PLCC68
PSDIP64
PLQFP64
PQFP80 |
AHVSUP,
DVSUP,
AVSUP |
|
1200
1300
960
1000 |
mW
mW
mW
mW |
|
VIdig |
Input Voltage, all Digital Inputs |
|
0.3 |
VSUP2 +0.3
|
V |
|
IIdig |
Input Current, all Digital Pins |
|
20 |
+20
|
mA1) |
|
VIana |
Input Voltage, all Analog Inputs |
SCn_IN_s,2)
MONO_IN |
0.3 |
VSUP1 +0.3
|
V |
|
IIana |
Input Current, all Analog Inputs |
SCn_IN_s,2)
MONO_IN |
5 |
+5
|
mA1) |
|
IOana |
Output Current, all SCART Outputs |
SCn_OUT_s2) |
3), 4)
|
|
|
|
IOana |
Output Current, all Analog Outputs
except SCART Outputs |
DACp_s2) |
3) |
3) |
|
|
ICana |
Output Current, other pins
connected to capacitors |
CAPL_p,2)
AGNDC |
3) |
3) |
|
1)positive value means current flowing into the circuit
2)"n" means "1", "2", "3", or "4", "s" means "L" or "R", "p" means "M" or "A"
3)The Analog Outputs are short-circuit proof with respect to First Supply Voltage and Ground.
4)Total chip power dissipation must not exceed absolute maximum rating.
Stresses beyond those listed in the "Absolute Maximum Ratings" may cause permanent damage to the device. This
is a stress rating only. Functional operation of the device at these or any other conditions beyond those indicated in
the "Recommended Operating Conditions/Characteristics" of this specification is not implied. Exposure to absolute
maximum ratings conditions for extended periods may affect device reliability.
DescriptionThe MSP3438G Multistandard Sound Pro-cessors covers the sound processing of all analog TV-Standards worldwide, as well as the NICAM digital sound standards. The full TV sound processing, start-ing with analog sound IF signal-in, down to processed analog AF-out, is performed on a single chip. Figure 11 shows a simplified functional block diagram of the MSP 34x8G.
The high-quality A/D and D/A converters of MSP3438G offer the full audio bandwidth of 20 kHz and the backend DSP pro-cessing is performed at a 48 kHz sample rate.
The MSP3438G has been designed for the usage in hybrid set-top boxes and multimedia applications. Its asynchronous I2S slave interface allows the reception of digital stereo signals with arbitrary sample rates ranging from 5 to 50 kHz. Synchronization is per-formed by means of an adaptive sample rate con-verter.
The processed standards of MSP3438G include the multichannel television sound signal (MTS) which conforms to the recommendations of the BTSC, as well as the Japa-nese FM-FM multiplex standard (EIA-J). For these standards, optimum stereo separation is achieved without any adjustment. In addition, the MSP3438G is also able to receive FM stereo radio and, in conjunc-tion with the DRP 3510, ASTRA Digital Radio (ADR).
The DBX noise reduction is performed alignment-free.
The MSP3438G versions are pin and software com-patible to other MSP families. Standard selection requires only a single I2C transmission.
Several built-in automatic functions of MSP3438G detect the actual sound standard (Automatic Standard Detection) or evaluate pilot levels and identification signals. Auto-matic switching between mono/stereo/bilingual is per-formed by the Automatic Sound Selection.
A status change indication signal makes polling of sta-tus information unnecessary.
The ICs MSP3438G are produced in submicron CMOS technology and are available in the following packages: PQFP80, PLQFP64, PLCC68, and PSDIP64.
MSP3438G Data Sheet
