isd1740a Winbond Electronics Corp America, isd1740a Datasheet
isd1740a
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isd1740a Summary of contents
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Voice Record & Playback Devices Confidential ISD1700A Series Multi-Message Single-Chip Publication Release Date: March 28, 2005 ADVANCED Revision A0 ...
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TABLE OF CONTENTS 1 GENERAL DESCRIPTION ..............................................................................................................4 2 FEATURES......................................................................................................................................5 3 BLOCK DIAGRAM...........................................................................................................................6 4 PINOUT CONFIGURATION............................................................................................................7 5 PIN DESCRIPTION .........................................................................................................................8 6 FUNCTIONAL DESCRIPTION ......................................................................................................11 6.1 Detailed Description...............................................................................................................11 6.1.1 Audio Quality ...............................................................................................................11 6.1.2 Message Duration........................................................................................................11 6.1.3 Flash Storage ..............................................................................................................11 6.2 Memory Array ...
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... Operating Conditions .............................................................................................................23 10 ELECTRICAL CHARACTERISTICS .............................................................................................24 10.1 DC Parameters ......................................................................................................................24 10.2 AC Parameters.......................................................................................................................25 11 TYPICAL APPLICATION CIRCUITS.............................................................................................26 11.1 Good Audio Design Practices ................................................................................................27 12 DIE PHYSICAL LAYOUT...............................................................................................................28 12.1 ISD1740A/50A/60A................................................................................................................28 13 ORDERING INFORMATION .........................................................................................................29 14 VERSION HISTORY......................................................................................................................30 Confidential ISD1700A SERIES Publication Release Date: March 28, 2005 - 3 - Revision A0 ...
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... The sampling frequency of each device can also be adjusted from 4 kHz to 12 kHz with an external resistor, giving the user greater flexibility in duration versus recording quality for each application. Operating voltage spans a range from 2 5 ensure that the ISD1740A/50A/60A devices are optimized for a wide range of battery or line-powered applications. ...
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... Commercial Temperature grade: 0qC to +50qC for die only x O Package options: available in die only Confidential 8 kHz 6.4 kHz 100 k: ISD1740A ISD1750A 33 ~ 100 sec - 5 - ISD1700A SERIES 5.3 kHz 4 kHz 120 k: 160 k: ISD1760A 40 ~ 120 sec ...
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BLOCK DIAGRAM ...
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... NC TE1 TE2 TE3 V SSA AnaIn MIC+ MIC- V SSP2 SP- V CCP Confidential ISD1740A 7 22 ISD1750A 8 21 ISD1760A PDIP Samples Only Publication Release Date: March 28, 2005 - 7 - ISD1700A SERIES V SSD RDY FWD ...
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PIN DESCRIPTION PIN NAME PDIP PIN NO Digital Power Supply important to have a separate path for each CCD power signal including V coupling. Decoupling capacitors should be as close to the device as possible. ...
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PIN NAME PDIP PIN NO Ground for Positive PWM Speaker Driver important to have a SSP1 separate path for each ground signal including V to minimize the noise coupling. AUD 17 Auxiliary Output: AUD is a ...
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PIN NAME PDIP PIN NO. 24 Record: The device starts recording whenever REC to Low and stays at Low. Recording stops when the signal returns to High. This pin has an internal pull-up device (T Deb 25 Erase: When active, ...
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... Flash memory and are reproduced in their natural form without any of the compression artifacts caused by digital speech solutions. 6.1.2 Message Duration The ISD1740A/50A/60A devices offer record and playback duration from 26 seconds to 120 seconds. Sampling rate and message duration are determined by an external resistor connected to the R OSC Table 6 ...
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... M O ODES OF PERATIONS The ISD1740A/50A/60A devices are designed to operate in push-button operation only. Push-button operation entails use of the pins to trigger operations. The internal state machine automatically configures the signal RESET path according to the operation requested. In this mode of operation, the internal state machine takes full control of message management ...
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PUSH-BUTTON OPERATIONS The user utilizes the , REC PLAY The device automatically enters the power-down state at the end of a PLAY, REC, ERASE, FWD, VOL, or RESET operation. 7 PERATION VERVIEW After power-on-reset (POR), the device ...
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Message record indicators: a) When goes Low: REC x If present, SE1 is played and LED flashes once. x Then, the LED stays On to indicate that a recording is in progress. b) When goes High or when the memory ...
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If the device is in power-down state and the current location of the play pointer is the last message: the pointer will advance to the first message and, if present, SE2 is played. The LED will flash twice. c) ...
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If the device is idle and the playback pointer is not currently pointing to the first or last message: No message is erased. o SE3, if present, will be played and the LED will flash twice. o Play pointer ...
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Psec after all supply rails reach their proper RESET specifications. 7.1.6 VOL Operation Pulsing Low changes the volume output. Each pulse on VOL until the minimum setting is reached. Subsequent pulses will increase ...
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Entering SE Mode First press and hold x FWD SE1 and cause the LED to blink once (if at the last message location, the chip will play SE2 and the LED will blink twice). While holding Low, press and ...
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A I NALOG NPUTS 7.4.1 Microphone Input Ccoup 0.1uF MIC + Ccoup 0.1uF MIC - Figure 7.2: MIC input impedance (When this path is active) 7.4.2 AnaIn Input Ccoup 0.1uF ANAIN Figure 7.3: AnaIn input impedance (When the device ...
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TIMING DIAGRAMS 8 ECORD PLAY AND ERASE T f REC T Deb RDY T SET LED T SE1 Mic+/-, AnaIn Figure 8.1: Record Operation ISD1700A SERIES - Deb T STOP T SE2 ...
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T f PLAY T Deb RDY T PSetUp LED Sp+, Sp PLAY RDY LED Sp+, Sp- Figure 8.2: Playback Operation Confidential Playback the Entire Message Deb T Deb T PSetUp Start Playback and Stop Playback ...
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T f ERASE T Deb RDY Figure 8.3: Erase Operation Deb T EStop Erase with ISD1700A SERIES ...
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ABSOLUTE MAXIMUM RATINGS CONDITIONS Junction temperature Storage temperature range Voltage applied to any pins Power supply voltage to ground potential Note: Stresses above those listed may cause permanent damage to the device. Exposure to the absolute maximum ratings may ...
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ELECTRICAL CHARACTERISTICS DC P 10.1 ARAMETERS PARAMETER SYMBOL Supply Voltage V DD Input Low Voltage V IL Input High Voltage V IH Output Low Voltage V OL Output High Voltage V OH Record Current I DD_Record Playback Current I ...
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AC P 10.2 ARAMETERS CHARACTERISTIC SYMBOL [2] Sampling Frequency F S [3] Duration T Dur Rising time T r Falling Time T f Debounce Time T Deb (REC, PLAY, ERASE, FWD, VOL) RESET Pulse T RESET Record SetUp Time T ...
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... TYPICAL APPLICATION CIRCUITS Two example circuits illustrate recording via MIC and AnaIn inputs, respectively. These examples show typical implementations of ISD1740A/50A/60A devices. . Example # 4 4 0 Rosc ** ** Sample Freq [kHz 6.4 4 Rosc [ 100 160 Notes: * These capacitors may be needed in order to optimize for the best voice quality, which is also dependent upon the layout of the PCB ...
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... REC PLAY 2 LED ERASE FWD CCD 0.1 F VOL 28 V SSD RESET V 21 CCA SSA V 14 TE3 CCP C6 ISD1740A TE2 SSP1 ISD1750A V 12 TE1 SSP2 ISD1760A NC 15 SP+ MIC+ 13 SP- MIC - 17 AUD ANA IN 27 RDY R OSC AGC RACTICES - 27 - ISD1700A SERIES ...
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... DIE PHYSICAL LAYOUT [1][2] 12.1 ISD1740A/50A/60A Notes: [1] The backside of the die is internally connected to V occur. [2] Please contact the local Winbond Sales Offices or Representatives for details on (x,y) coordinates. TE1 TE2 TE3 ISD1740A ISD1750A ISD1760A V SSA AnaIn MIC+ MIC MUST NOT be connected to any other potential or damage may ...
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... ISD1700 Series Duration : 40A = 40 seconds 50A = 50 seconds 60A = 60 seconds When ordering ISD1740A/ISD1750A/ISD1760A, please refer to the following valid ordering numbers, which are planned to be supported in volume for this product series. Please consult the local Winbond Sales Representatives for availability information. Part Number ISD1740A ...
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VERSION HISTORY VERSION DATE A0 March 2005 DESCRIPTION Initial version - 30 - ISD1700A SERIES ...
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The contents of this document are provided only as a guide for the applications of Winbond products. Winbond makes no representation or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right ...