TCM320AC36CN

Manufacturer Part NumberTCM320AC36CN
DescriptionIC VOICE BAND AUDIO PROCESSOR 20
ManufacturerTexas Instruments
SeriesVBAP™
TypeAudio Processor
TCM320AC36CN datasheets

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Specifications of TCM320AC36CN

ApplicationsCell PhoneMounting TypeThrough Hole
Package / Case*Lead Free Status / RoHS StatusContains lead / RoHS non-compliant
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Download datasheet (318Kb)Embed
Next
D
Single 5-V Operation
D
Low Power Consumption:
– Operating Mode . . . 40 mW Typ
– Standby Mode . . . 5 mW Typ
– Power-Down Mode . . . 3 mW Typ
D
Combined A/D, D/A, and Filters
D
Extended Variable-Frequency Operation
– Sample Rates up to 16 kHz
– Pass-Band up to 7.2 kHz
D
Electret Microphone Bias Reference
Voltage Available
D
Drive a Piezo Speaker Directly
D
Compatible With All Digital Signal
Processors (DSPs)
DW OR N PACKAGE
(TOP VIEW)
PDN
MICBIAS
1
20
EARA
MICGS
2
19
EARB
MICIN
3
18
EARGS
VMID
4
17
V
GND
5
16
CC
MICMUTE
LINSEL
6
15
DCLKR
TSX/DCLKX
7
14
DIN
DOUT
8
13
FSR
FSX
9
12
EARMUTE
CLK
10
11
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
VBAP is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
VOICE-BAND AUDIO PROCESSORS (VBAP )
D
Selectable Between 8-Bit Companded and
13-Bit (Dynamic Range) Linear Conversion:
– TCM320AC36 . . . -Law and Linear
Modes
– TCM320AC37 . . . A-Law and Linear
Modes
D
Programmable Volume Control in Linear
Mode
D
300 Hz – 3.6 kHz Passband with Specified
Master Clock
D
Designed for Standard 2.048-MHz Master
Clock for U.S. Analog, U.S. Digital, CT2,
DECT, GSM, and PCS Standards for
Hand-Held Battery-Powered Telephones
PT PACKAGE
(TOP VIEW)
48
47 46 45 44 43
NC
1
NC
2
NC
3
AV
4
CC
NC
5
NC
6
NC
7
NC
8
DV
9
CC
NC
10
MICMUTE
11
NC
12
13
14 15
16
17 18 19 20
NC – No internal connection
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TCM320AC36, TCM320AC37
SLWS003C – MAY 1992 – REVISED APRIL – 1998
42
41
40 39 38
37
VMID
36
NC
35
AGND
34
33
NC
32
NC
31
NC
30
NC
29
NC
28
NC
27
DGND
26
LINSEL
25
NC
21 22 23 24
Copyright
1998, Texas Instruments Incorporated
1

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TCM320AC36CN Summary of contents

  • Page 1

    ... MOS gates. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. VBAP is a trademark of Texas Instruments Incorporated. ...

  • Page 2

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 description The TCM320AC36 and TCM320AC37 voice-band audio processor (VBAP) integrated circuits are designed to perform the transmit encoding (A /D conversion) and receive decoding ...

  • Page 3

    Transmit MICMUTE Input Third-Order 18 Buffer Antialias MICIN 19 MICGS Band-Gap Voltage Reference VMID 17 VMID VMID Generator 20 MICBIAS 2 EARA 3 EARB Earphone 4 Amplifier EARGS 10 EARMUTE Terminal numbers shown are for the ...

  • Page 4

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 TERMINAL NO. I/O NAME NAME DW AGND — 34 Ground return for all internal analog circuits AV CC — 4 5-V supply ...

  • Page 5

    Supply voltage range, V (see Note 1) CC Output voltage range at DOUT, V Input voltage range at DIN Continuous total power dissipation Operating free-air temperature range: ...

  • Page 6

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 electrical characteristics over recommended ranges of supply voltage and free-air temperature (unless otherwise noted) supply current DCLKR DCLKX PARAMETER Operating Power ...

  • Page 7

    A-law) or linear mode selected (unless otherwise noted) (see Notes 5 and 6) A PARAMETER Transmit reference-signal level (0 dB) (see Note 7) Overload-signal level ...

  • Page 8

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 transmit idle channel noise and distortion, linear mode selected, over recommended ranges of supply voltage and operating free-air temperature (see Notes 6 and 8) ...

  • Page 9

    A-law selected, over recommended ranges of supply voltage and operating free-air temperature (see Note 9) PARAMETER Receive noise, psophometrically weighted Receive noise, C-message weighted Receive signal-to-distortion ratio with sine-wave ...

  • Page 10

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 timing requirements clock timing requirements over recommended ranges of supply voltage and operating free-air temperature (see Figure 1 through Figure Transition ...

  • Page 11

    Figure 4) PARAMETER t pd6 FSX high to DOUT bit 1 valid t pd7 DCLKX high to DOUT valid, bits pd8 FSX low to ...

  • Page 12

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 PARAMETER MEASUREMENT INFORMATION 0 1 80% DCLKR FSR See Note A DIN N – See Note C NOTES: A. This window ...

  • Page 13

    The device should be powered up and initialized as follows: 1. Apply GND. 2. Apply Connect all clocks. 4. Apply TTL high to PDN. 5. Apply synchronizing pulses to FSX and/or FSR. ...

  • Page 14

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 Table 1. Power-Down and Standby Procedures DEVICE STATUS PROCEDURE PDN = high, Power on FSX = pulses, FSR = pulses PDN = low, Power ...

  • Page 15

    The TCM320AC36 provides recommendation. The TCM320AC37 provides A-law companding operation that approximates the CCITT G.711 recommendation. The linear mode of operation uses a 13-bit two’s-complement format and is the same for both the TCM320AC36 and the TCM320AC37. transmit ...

  • Page 16

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 encoding The encoder internally samples the output of the transmit filter and holds each sample on an internal sample-and-hold capacitor. The encoder performs an ...

  • Page 17

    IN VMID NOTE A: Terminal numbers shown are for the DW and N packages. Figure 6. Earphone Audio-Output Amplifier Configuration and Internal Gain-Setting Network receive data format In the companded mode, eight bits of data are received. The sign bit ...

  • Page 18

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 BIT NO Volume control and other control bits ...

  • Page 19

    Figure 7) EARA and EARB are low-impedance complementary outputs. The voltages at the nodes are EARA EARB O – – V (total differential response) OD ...

  • Page 20

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 DW (R-PDSO-G**) 16 PIN SHOWN 0.050 (1,27) 0.020 (0,51) 0.014 (0,35 0.012 (0,30) 0.104 (2,65) MAX 0.004 (0,10) NOTES: A. All ...

  • Page 21

    N (R-PDIP-T**) 16 PIN SHOWN 0.070 (1,78) MAX 0.035 (0,89) MAX 0.020 (0,51) MIN 0.100 (2,54) 0.021 (0,53) 0.010 (0,25) 0.015 (0,38) NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to ...

  • Page 22

    TCM320AC36, TCM320AC37 VOICE-BAND AUDIO PROCESSORS (VBAP ) SLWS003C – MAY 1992 – REVISED APRIL – 1998 PT (S-PQFP-G48) 0, 5,50 TYP 7,20 SQ 6,80 9,20 SQ 8,80 1,45 1,35 1,60 MAX NOTES: A. All linear dimensions ...

  • Page 23

    ... Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability ...

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