AM79212JC AMD (ADVANCED MICRO DEVICES), AM79212JC Datasheet
AM79212JC
Specifications of AM79212JC
Related parts for AM79212JC
AM79212JC Summary of contents
Page 1
... Linecard Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Distinctive Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 ASLIC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 ASLAC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ASLIC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ASLAC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ASLIC/ASLAC Devices Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Absolute Maximum Electrical and Thermal Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 ASLIC Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 ASLAC Device Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ASLIC Device Relay Driver Schematic ...
Page 2
... Total Distortion with Tone Input (Both Paths Figure 6 A/A Overload Compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 7 ASLIC/ASLAC Typical Linecard Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 LIST OF TABLES Table 1 Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Table 2 ASLIC Device DC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Table 3 ASLIC Device Relay Driver Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 4 ASLIC Device Transmission Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 5 ASLAC Device DC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 6 ASLAC Device Transmission and Signaling Specifications . . . . . . . . . . . . . . . . 21 Table 7 Microprocessor Interface ...
Page 3
... Ring-Feed Resistor Ringer Supply Control Interface (GCI). Additionally, the ASLIC device and ASLAC device have integrated self test and line test capabilities to resolve faults to the line or line circuit. fully-software- The integrated test capability is crucial for remote applications where dedicated test hardware is not cost effective ...
Page 4
DISTINCTIVE CHARACTERISTICS Performs all of the functions of a CODEC-Filter Single channel architecture Performs Battery-Feed, Ring-trip, Signaling, Coding, Hybrid, and Test (BORSCHT) functions Single hardware design meets multiple country requirements through software programming GCI Interface — Control and PCM on ...
Page 5
... J = 32-pin Plastic Leaded Chip Carrier (PL 032) DEVICE NUMBER/DESCRIPTION Am79212 Advanced Subscriber Line Interface Circuit Valid Combinations Valid Combinations list configurations planned supported in volume for this device. Consult the local AMD sales office to confirm availability of specific valid combinations and to check on newly released combinations. ASLIC/ASLAC Products 5 ...
Page 6
ASLAC Device AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed by a combination of the elements below. Must order Am79212 with the part below. Am79C202 J Valid Combinations Am79C202 Note: ...
Page 7
... RSVD = Reserved. Do not connect to this pin. DCL FS RST DD DU VCCD 32-Pin PLCC ASLIC Device 8 Am79212 32-Pin PLCC ASLAC Device 8 Am79C202 ASLIC/ASLAC Products 29 RSVD 28 HPB 27 HPA 26 RSVD BAL1 25 24 BAL2 23 VREF VTX 22 21 IDC 19780A-004 29 IAB 28 IREF 27 VLBIAS 26 VCCA IDIF 25 24 ISUM 23 IRTA IRTB 22 IDC 21 19780A-003 7 ...
Page 8
... These ternary logic input pins control the operating state of the ASLIC device. C5–C3 Test Relay Control (Input) These are control inputs for the test relay drivers in the ASLIC device. A logic Low turns on the relay driver and activates the relay. C3 controls RY1OUT, C4 controls RY2OUT, and C5 controls RY3OUT. GND Ground Analog and digital ground return for VCC ...
Page 9
... This pin connects to the IAB pin on the ASLAC device through the external resistor RAB. A voltage that is significantly more positive than VREF on the VDC pin indicates that the ASLIC device is in thermal shutdown. VLBIAS Longitudinal Offset Voltage (Input) The input to this pin is the offset reference voltage for the ASLIC device longitudinal control loop ...
Page 10
... I/O1 and I/ O2 bits of the upstream C/I channel. When programmed as outputs, they can control an external logic device or they can be connected to pin C3, C4 the ASLIC device to control test relay drivers RY1OUT, RY2OUT, and RY3OUT. Am79212/Am79C202 Data Sheet ...
Page 11
... This output port is TTL compatible and is controlled by the O1 bit (bit 2) in the downstream C/I channel. It can control an external logic device or it can be connected to pin C3, C4 the ASLIC device to control relays. RST Reset (Input) A logic 1 on this pin resets the ASLAC device to initial default conditions ...
Page 12
... The ASLIC device is customized to be used exclusively with the ASLAC device providing a two-chip universal line interface. The ASLIC device requires only power supply and a negative battery supply for its operation. The ASLIC device implements a linear loop current ...
Page 13
... System- level parameters under programmable control include active and disable loop-current limits, feed resistance, and apparent battery-feed voltage. The longitudinal operating point is programmable to optimize the ASLIC device signal swing capability The ASLAC device provides signals kHz for metering functions ...
Page 14
... Normal polarity ASLAC device power dissipation MCLK, PCLK = 2.048 MHz Thermal Resistance The junction-to-air thermal resistance of the ASLIC device in a 32-pin, PLCC package will be less than 45°C/W. The junction-to-air thermal resistance of the ASLAC device in a 32-pin, PLCC package will be less than 45°C/ fuse resistors, V Table 1 ...
Page 15
... Note: Thermal limiting circuitry on chip will shut down the circuit at a junction temperature of about 160°C. The device should never be exposed to this temperature. Operation above 145°C junction temperature may degrade device reliability. See the SLIC Packaging Considerations for more information ASLAC Device ...
Page 16
... I VDC threshold voltage output on VDC 10 Gain from VLBIAS pin pin 11 Input resistance to AGND, VLBIAS pin VLBIAS = ISUM/ILOOP ILOOP = IDIF/ILONG ILONG = Table 2. ASLIC Device DC Specifications Condition Min = 1 Meg V – 1.8 L BAT = 600 19.51 AD–BD = 600 11.34 AD–BD 130 = 1930 44.6 L 35.4 BAT 43 ...
Page 17
... Table 2. ASLIC Device DC Specifications (continued) No. Item 14 Input current, SA and SB pins 15 Input current HPA and HPB pins 16 IDC input impedance 17 K1 Incremental DC Current Gain 18 Metallic offset current ASLIC Device Relay Driver Schematic Table 3. ASLIC Device Relay Driver Specifications Item 25 mA per relay sink ...
Page 18
... Table 4. ASLIC Device Transmission Specifications (continued) No. Item 4-wire gain variation 300 to 3400 Hz relative to 1 kHz with frequency 4-wire gain tracking +3 dBm to –55 dBm Reference: –10 dBm 2-wire gain –10 dBm, 1 kHz 2-wire gain variation 300 to 3400 Hz relative to 1 kHz with frequency ...
Page 19
... Table 4. ASLIC Device Transmission Specifications (continued) No. Item 19 Low frequency induction Active state, VLONG = 30 V rms, (REA method mA Longitudinal AC current per wire Table 5. ASLAC Device DC Specifications No. Item 1 Input Low voltage DD, FS, DCL, RST, I1, I/O1, I/O2 S0, S1 Input High voltage DD, FS, DCL, RST, I1, ...
Page 20
Table 5. ASLAC Device DC Specifications (continued) No. Item 8 DC Feed ILA = 47.6 mA, RFD = 403 , VAS = 10.3 V, IBAT = 69.9 A IDC Active state, Normal polarity, IAB = 0, VAPP ...
Page 21
... MHz with null coefficients Condition Min –0.25 –0.30 –0.25 –0.30 –0.20 –0.25 –0. –0 –0.1 –0.2 –0.25 ) OUT – ASLIC/ASLAC Products Typ Max Unit Note 0 +0.25 +0. +0.25 +0.30 0 +0.20 0 +0.25 +0.34 dB +0.1 +0.1 +0.1 +0.4 +0.50 dBm0p 12 –68 –78 dBrnC0 ...
Page 22
... Table 6. ASLAC Device Transmission and Signaling Specifications (continued) No. Item 11 Switchhook thresholds All TSH settings Switchhook hysteresis 12 Ground-key thresholds All TGK settings Ground-key hysteresis 13 Voltage that sets Voltage on ASLIC device V thermal shutdown bit IDIF fault current Tip-to-battery fault current (mA) thresholds FT, pkFT 19.3, 50.6 FT, pkFT hysteresis 15 AISN gain accuracy ...
Page 23
... Must meet at least one of these specifications. 10. These voltages are referred to VREF. 11. These limits refer to the two-wire output of an ideal ASLIC device but reflect only the capabilities of the ASLAC device. 12. When relative levels (dBm0) are used, the specification holds for any setting of (AX + GX) gain from ( RG) from 0 to – ...
Page 24
The transmit path is defined as the section between the analog input to the ASLAC device (VIN) and the GCI voice output of the ASLAC device A-law/µ-law speech compressor (see the Voice Transmission Path figure in the Technical Reference). The ...
Page 25
... ASLAC Device Specification (Either Path) 0 500 600 1000 Frequency (Hz) Figure 2. Group Delay Distortion in the same frequency range, is less than –46 dBm0. With f 0 ASLIC/ASLAC Products 2600 2800 swept between 0 are less than –28 dBm0. This 0 f1 – f2) products having a level greater 25 ...
Page 26
Gain Linearity The gain deviation relative to the gain at –10 dBm0 is within the limits shown in Figure 3 (A-law) and Figure 4 (µ-law) for either transmission path when the input is a sine wave signal of 1014 Hz. ...
Page 27
... Fundamental Output Power (dBm0 Signal-to-Total Distortion (dB) 0 Input Level (dBm0) +12 dB; (2) – Acceptable Region Fundamental Input Power (dBm0) Figure 6. A/A Overload Compression ASLIC/ASLAC Products A-law µ-Law A 35 35 receive path < –1 dB; (3) Digital ...
Page 28
SWITCHING CHARACTERISTICS Microprocessor Interface Min. and Max. values are valid for all digital outputs with a 100 pF load, except DU which is valid with 8 loads, (see note 2). No. Symbol High pulse width FSW 2 ...
Page 29
... SWITCHING WAVEFORMS Input and Output Waveforms for AC Tests 2.4 0.45 Data Clock Timing – DCL 2.0 2 Test Points 0.8 0 ASLIC/ASLAC Products 12 29 ...
Page 30
GCI Waveforms DCL FS DD, DU GCI Timing (Detail DCL Bit 7 Detail Am79212/Am79C202 ...
Page 31
... Active and Tip Open states. Power dissipated in the thermal management resistor during normal Active and Tip Open states TMG 2 Power dissipated in the ASLIC device while in normal Active I + 0.12 W LOOP and Tip Open states Power dissipated in the ASLIC device while in the polarity + 0 ...
Page 32
... C. TEST U3 E BATTERY 4 2 BUS RSB RFB K2B B K1B CBD RGFD1 RING BUS + Polarized Capacitor Figure 7. ASLIC/ASLAC Typical Linecard Schematic ASLAC device (32-Pin PLCC) VCC GND VREF CDC1 SA IDC RSN AD CAD U1 + BAL2 NC RINGOUT CM BAL1 NC RY1OUT RM RY2OUT RY3OUT VTX ISUM IDIF HPA ...
Page 33
... Can be looser for relaxed ring trip reUCquirements. 1% match (each resistor ±0.5%) gives 1.275 mA uncertainty in ringing current sensing. REVISION SUMMARY Revision A to Revision B • Under Connection Diagrams, Top View, fixed the ASLIC device to read Am79212 instead of Am79C212. • Minor changes were made to the data sheet style and format to conform to AMD standards Value Tol ...