DatasheetsPDF.com

TEA1094AM Dataheets PDF



Part Number TEA1094AM
Manufacturers NXP
Logo NXP
Description Hands-free
Datasheet TEA1094AM DatasheetTEA1094AM Datasheet (PDF)

INTEGRATED CIRCUITS DATA SHEET TEA1094; TEA1094A Hands free IC Product specification Supersedes data of 1996 Mar 11 File under Integrated Circuits, IC03 1996 Jul 15 Philips Semiconductors Product specification Hands free IC FEATURES • Low power consumption • Power-down function (TEA1094A only) • Microphone channel with: – externally adjustable gain – microphone mute function. • Loudspeaker channel with: – externally adjustable gain – dynamic limiter to prevent distortion – rail-to-rail output.

  TEA1094AM   TEA1094AM


Document
INTEGRATED CIRCUITS DATA SHEET TEA1094; TEA1094A Hands free IC Product specification Supersedes data of 1996 Mar 11 File under Integrated Circuits, IC03 1996 Jul 15 Philips Semiconductors Product specification Hands free IC FEATURES • Low power consumption • Power-down function (TEA1094A only) • Microphone channel with: – externally adjustable gain – microphone mute function. • Loudspeaker channel with: – externally adjustable gain – dynamic limiter to prevent distortion – rail-to-rail output stage for single-ended load drive – logarithmic volume control via linear potentiometer – loudspeaker mute function. • Duplex controller consisting of: – signal envelope and noise envelope monitors for both channels with: externally adjustable sensitivity externally adjustable signal envelope time constant externally adjustable noise envelope time constant – decision logic with: externally adjustable switch-over timing externally adjustable idle mode timing externally adjustable dial tone detector in receive channel – voice switch control with: adjustable switching range constant sum of gain during switching constant sum of gain at different volume settings. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA1094 TEA1094A TEA1094T TEA1094AT TEA1094AM DIP28 DIP24 SO28 SO24 SSOP24 DESCRIPTION plastic dual in-line package; 28 leads (600 mil) plastic dual in-line package; 24 leads (600 mil) APPLICATIONS TEA1094; TEA1094A • Mains, battery or line-powered telephone sets with hands-free/listening-in functions • Cordless telephones • Answering machines • Fax machines. GENERAL DESCRIPTION The TEA1094 and TEA1094A are bipolar circuits intended for use in mains, battery or line-powered telephone sets, cordless telephones, answering machines and Fax machines. In conjunction with a member of the TEA106X, TEA111X families of transmission circuits, the devices offer a hands-free function. They incorporate a microphone amplifier, a loudspeaker amplifier and a duplex controller with signal and noise monitors on both channels. VERSION SOT117-1 SOT101-1 SOT136-1 SOT137-1 SOT340-1 plastic small outline package; 28 leads; body width 7.5 mm plastic small outline package; 24 leads; body width 7.5 mm plastic shrink small outline package; 24 leads; body width 5.3 mm 1996 Jul 15 2 Philips Semiconductors Product specification Hands free IC TEA1094; TEA1094A QUICK REFERENCE DATA VBB = 5 V; VGND = 0 V; f = 1 kHz; Tamb = 25 °C; MUTET = LOW; PD = LOW (TEA1094A only); RL = 50 Ω; RVOL = 0 Ω; measured in test circuit of Fig.12; unless otherwise specified. SYMBOL VBB IBB Gvtx ∆Gvtxr Gvrx PARAMETER supply voltage current consumption from pin VBB voltage gain from pin MIC to pin MOUT in transmit mode voltage gain adjustment with RGAT voltage gain in receive mode; the difference between RIN1 and RIN2 to LSP voltage gain adjustment with RGAR output voltage (peak-to-peak value) VRIN = 150 mV (RMS); RGAR = 374 kΩ; RL = 33 Ω; VBB = 9.0 V; note 1 VRIN = 20 mV (RMS); RGAR = 66.5 kΩ; RL = 50 Ω VMIC = 1 mV (RMS); RGAT = 30.1 kΩ CONDITIONS − 13 −15.5 16 MIN. 3.3 − 3.1 15.5 − 18.5 TYP. MAX. 12.0 4.4 18 +15.5 21 UNIT V mA dB dB dB ∆Gvrxr VO(p-p) −18.5 − − 7.5 +14.5 − dB V SWRA ∆SWRA Tamb Note switching range switching range adjustment with RSWR referenced to RSWR = 365 kΩ operating ambient temperature − −40 −25 40 − − − +12 +75 dB dB °C 1. Corresponds to 200 mW output power. 1996 Jul 15 3 Philips Semiconductors Product specification Hands free IC BLOCK DIAGRAM handbook, full pagewidth TEA1094; TEA1094A 10 (7) (13) VBB PD(1) TEA1094 TEA1094A MICROPHONE CHANNEL GND 8 (6) VBB 19 (15) MUTET CMIC 22 (18) MIC GAT 21 (17) 20 (16) 18 (14) RGAT V I I V MOUT MICGND to TEA106x RMIC IDT RTSEN CTSEN BUFF 28 (24) TSEN LOG 16 (12) RIDT DUPLEX CONTROLLER Vref 14 (11) CSWT SWT 27 (23) TENV CTENV 26 (22) CTNOI CRNOI BUFF 13 mV ATTENUATOR TNOI STAB 13 (10) RSTAB 23 (19) RNOI VOICE SWITCH LOGIC BUFF 24 (20) RENV CRENV 13 mV BUFF RRSEN CRSEN 25 (21) RSEN LOG Vdt SWR 12 (9) RSWR RGAR 5 (4) 6 (5) GAR VBB LSP V I I V 2 RIN1 RIN2 2 (2) 3 (3) 11 (8) RVOL from TEA106x CLSP 1 (1) CDLC DLC/MUTER DYNAMIC LIMITER VOLUME VOL CONTROL LOUDSPEAKER CHANNEL MGE436 The pin numbers given in parenthesis are for the TEA1094A. (1) TEA1094A only. Fig.1 Block diagram. 1996 Jul 15 4 Philips Semiconductors Product specification Hands free IC PINNING PINS SYMBOL TEA1094 DLC/MUTER RIN1 RIN2 n.c. GAR LSP n.c. GND n.c. VBB VOL SWR STAB SWT n.c. IDT PD n.c. MICGND MUTET MOUT GAT MIC RNOI RENV RSEN TNOI TENV TSEN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 − 17 18 19 20 21 22 23 24 25 26 27 28 TEA1094A 1 2 3 − 4 5 − 6 − 7 8 9 10 11 − 12 13 − 14 15 16 17 18 19 20 21 22 23 24 TEA1094; TEA1094A DESCRIPTION dynamic limiter timing adjustment; receiver channel mute input receiver amplifier input 1 receiver amplifier input 2 not connected receiver gain adjustment loudspeaker amplifier output not connected ground reference not connected supply voltage receiver.


TEA1094A TEA1094AM TEA1094AT


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)